Lonesome George and the Battle for Galapagos


Lonesome George and the Battle for Galapagos

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Lonesome George is the most famous tortoise in the world.

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He is also the only one of his kind.

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His ancestors were slaughtered over a century ago.

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Discovered and rescued in the '70s,

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he's come to symbolise the plight of the unique animals of the Galapagos

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and the battle to restore the islands to their former glory.

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For a while, Galapagos was considered beyond saving.

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Decades of conservation work

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succeeded in buying time, but the wildlife is once again under attack.

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Tensions between local people and wildlife run high.

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The islands have been brought to the point of crisis.

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But those same people may offer the islands their best chance of salvation.

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Extreme measures are being taken.

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In 21st-century Galapagos,

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can its unique wildlife be spared the same fate as Lonesome George -

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staring extinction in the face?

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The famous Galapagos islands.

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A tropical paradise - remote,

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fantastical and renowned for their abundance of wildlife.

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The islands take their name from the Spanish word for giant tortoise -

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this is one of only two places on Earth these reptiles are found.

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They're a naturalist's dream -

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the most pristine tropical archipelago in the world.

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Flung far off the west coast of South America, the Galapagos Islands

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are isolated by hundreds of miles of ocean in every direction.

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This isolation has led to the evolution of so many unique species,

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and that same isolation

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has protected them from human colonisation and disturbance.

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But the islands are changing.

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30,000 people now call these islands home.

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They're mostly immigrants from mainland Ecuador.

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Galapagos is a province of Ecuador,

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and the people retain a strong national identity.

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The vast majority have arrived in the past 20 years.

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The islands are famous for the tameness of their animals.

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Here, more than anywhere else on Earth, humans and wildlife

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appear to live happily side by side.

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In this pristine wilderness of Galapagos

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you can almost believe that you are in a modern-day Garden of Eden.

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But in reality, this trusting wildlife is particularly vulnerable.

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Despite the illusion of paradise, the animals have been suffering

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for as long as people have been present here.

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There's no better case in point than the story of Lonesome George.

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On the outskirts of town, Lonesome George has his own corral

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within the protective boundaries of the National Park

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and Charles Darwin Research Centre.

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Fausto Llerena is the chief warden

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responsible for Lonesome's comfort and well-being.

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He's grown fond of his precious charge.

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He is unique.

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He's in the Guinness Book of Records as the loneliest creature on Earth.

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He is, quite simply, the only surviving member of his race.

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The only Pinta Island giant tortoise in existence.

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The rest of his kind were mostly wiped out by whalers and buccaneers

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in the 18th and 19th centuries.

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Ships full of hungry men, at sea for months on end.

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They had this problem of victualling,

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and they got to the Galapagos and they would look forward to it

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for weeks because that's where they could get tortoises.

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If you've come round Cape Horn

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and you've been living off mummified penguins and rotten pork for months,

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and you've got the chance of stocking up your ship with several tonnes

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of absolutely fresh living meat,

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by dumping a few hundred tortoises in the holds,

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the quality of life for you increases

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a great deal, although it reduces a lot for the poor animals in the hold.

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It's thought that Galapagos had 13 races of giant tortoises,

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spread across the larger islands of the archipelago.

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It was the outlying island populations

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that were first plundered by the visiting sailors.

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The first race to go extinct, as far as we can tell, was on Floreana,

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where the noteworthy Mr Charles Darwin visited in the 1830s -

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he was there in the closing stages of the existence of that tortoise.

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By 1840, as far as we can tell, it was gone.

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In fact, Darwin may have eaten some of the very last ones, and the shells

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were thrown overboard from the Beagle as they sailed off,

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so it was a different ethic in those days. You had to survive.

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Nearly all the populations were decimated by the visiting sailors.

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At least two races were considered extinct by the mid 20th century.

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While the tortoises of Pinta Island

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were known only from skeletons and a 19th-century lithograph.

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The Pinta tortoise always fascinated me personally,

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because he was such a weird-looking animal. And, as you can see,

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it just doesn't look like other tortoises.

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It's just taller and the texture of the shell is completely different.

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And, it struck me as, "Hey, I've seen giant tortoises in London Zoo,

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"but there's nothing like that."

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You can see this uprising neck, tiny little beady eyes,

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and that shape would not work on the Continent.

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Some jaguar would get in and just rip it apart, but in this Eden-like atmosphere of Galapagos,

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it doesn't need the protection any more.

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The shell's 1mm thick, just enough to hold it together so it doesn't

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fall in two halves on the trail.

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The last living tortoise on Pinta was recorded in 1906.

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After that, only bones were found.

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Until, that is, in 1971, a visiting snail scientist happened to recount

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the details of his collecting trip to tortoise expert Peter Pritchard.

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I was talking about saddle-back tortoises and adaptations for certain kinds of islands and,

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he said, "Well, you know the tortoise we saw last week on Pinta

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"wasn't really very saddle-backed."

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I said, "What did you say?"

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I just about dropped my teeth. He said, "We were in Pinta doing snails

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"and this tortoise came out,

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"and it was only one we saw, so I took a picture of it". I said, "Can I see the picture?"

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This one photo brought a species thought to be extinct back to life.

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Inspired by this evidence of a living Pinta tortoise,

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the National Park authorities immediately sent out a search party.

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This, the only footage ever taken of a tortoise on Pinta,

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was recorded by Peter Pritchard who,

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keen to share in this remarkable discovery, had followed

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the Park Rangers out to the island.

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By the time I arrived, they had found Lonesome George,

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and he was tied up by one leg,

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hobbling around on the little area just behind the coast,

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and waiting to be taken away.

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He was taken to the National Park headquarters on Santa Cruz Island

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for safe-keeping.

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News of his discovery spread far and wide.

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And he became the most famous tortoise in the world.

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I mean, anyone who knows about tortoises or Galapagos

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knows about Lonesome George.

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Lonesome's story brought the plight of the Galapagos tortoises

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to the attention of the world, at a time when there was growing concern

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about the impact of man on nature.

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Yet, despite this, the natural riches of the Galapagos

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continued to be plundered.

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Nowhere are those riches more vivid than under the waves.

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This is one of the most productive tropical marine ecosystems in the world.

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The impact of local fishermen on this marine life had always been small.

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Fishing was primarily for subsistence

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as the islands' remote location meant there was no external market.

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But, in 1989, there was a change in the fishermen's fortunes.

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A market suddenly opened for a rather unlikely catch -

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the sea cucumber.

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These animals are a delicacy in the Far East.

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They're cooked in soups and considered to be an aphrodisiac.

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Asian buyers arrived in Galapagos, offering large amounts of cash to anyone who could supply them.

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Fishermen used to earning a few hundred dollars a year could

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earn several thousand in a day, just by picking the defenceless animals up off the sea floor.

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The sea cucumber bonanza changed the islands forever.

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Hundreds of fishermen from the Continent streamed into the islands.

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Soon, they were harvesting up to a million animals every week.

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Within a few years, the sea cucumbers had all but disappeared.

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It was time for the National Park authorities to step in.

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They set quotas and imposed size restrictions,

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and not just for sea cucumbers,

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but for all marine resources - lobster numbers were also in rapid decline.

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They had the authority to confiscate illegal catches,

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while legal catches were validated

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with their stamp of approval - the image of Lonesome George.

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This was the first time the National Park had seriously

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concerned itself with the day-to-day affairs of the Galapagan people,

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and not everyone was pleased.

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The fishermen demonstrated against ever tighter restrictions,

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complaining they could no longer make a basic living.

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They vented their anger against the National Park,

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even burning an effigy of the park's director.

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In the year 2000, the National Park buildings on Isabela Island

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were comprehensibly trashed.

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Scrawled on the walls were threats to the lives of the staff who worked here.

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Ever since the National Park got involved with sea cucumber fishery,

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there has been tension between them and the fishermen.

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They've even received death threats to their icon, Lonesome George.

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"The National Park authorities and other conservation bodies are more

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"concerned with the welfare of the animals than the people."

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That's the claim of the leaders of the local fishing co-operatives.

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To try and address this, the National Park host regular meetings

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with the fishermen to discuss how to manage the marine environment.

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How to provide for the fishermen, yet still uphold the ban on sea cucumber collecting.

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There's much talk of finding alternative employment for the fishermen.

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Titi Rendon is Head of the Santa Cruz fishing co-operative.

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One of the problems for both the park and the fishing co-operative

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is enforcing the regulations so that the marine life can recover.

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Having decimated the lobster and sea cucumber fisheries,

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some fishermen with no alternative employment available

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are now turning their attention to another lucrative catch.

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Sharks are being targeted, butchered for their fins.

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There are worrying parallels with the sea cucumber boom.

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The shark fins are sold for vast sums to the Far East

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where they're used to thicken ceremonial soup.

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This is strictly illegal.

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Galapagos has one of the best set of laws to protect

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marine life in the world, but these laws simply can't be enforced.

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Just as with sea cucumbers, it's "grab what you can before it's gone".

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Shark numbers are already in decline.

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It's been predicted the sharks

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of Galapagos will have all but disappeared in ten years.

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Removing these top predators is also damaging

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one of the world's most spectacular underwater ecosystems.

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There are likely to be knock-on effects right through the food chain.

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It's not just the damage to marine life that is a cause for concern.

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The Galapagos Islands are regularly voted the best dive destination in the world.

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For all the underwater wonders, there is one star attraction.

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Every diver dreams of seeing live sharks.

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Diving is the fastest-growing sector of the largest industry

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in the Galapagos - tourism.

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Killing one of tourism's top attractions

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is undermining the very industry that could provide employment

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for out-of-work fishermen.

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It's in the interests of the tourist sector to limit the damage

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being done by the fishermen.

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One of the biggest dive operations is owned by Herbert Frey.

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Whether all those involved can be persuaded to abandon shark finning,

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in favour of a new life in tourism, remains to be seen.

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What's certain is the tourist sector is well aware

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of the need for better protection of the wildlife it depends on.

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Cause celebre for the conservation movement, Lonesome George

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has been embraced by a tourism industry keen to show its support

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for the protection of the wildlife.

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Almost every tourist shop sells souvenirs bearing his image and name.

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Lonesome George has achieved celebrity status.

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He's on the itinerary of every single visitor,

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and is presented as living proof

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of what can go wrong when humans invade this fragile paradise.

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But not one tourist will ever visit his homeland, Pinta Island.

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It's off limits. In fact, it's so little visited

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that for a long time, hope survived that there might be more tortoises

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hiding on the island, and with good reason.

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A few years after the discovery of Lonesome George, this shell

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was found by scientists visiting Pinta.

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The shell beside me here is of great interest,

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because this is a Pinta tortoise and it's an empty shell,

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but it's with scutes on, and they fall off when the animal's been dead

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for a year or so.

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So, when that animal was collected and brought into this controlled

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environment, it hadn't been dead for probably more than a year.

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And it was found on Pinta two or three years after Lonesome George was found.

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So there was more poking around there.

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Peter Pritchard planned a final and exhaustive search of Pinta

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in the hope more tortoises were hiding on the wild and remote island.

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So this was a systematic transecting of the vegetative parts of Pinta.

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But they found no sign of a living tortoise.

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We found 15 skeletons of tortoises in...

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none killed by man as far as we can tell.

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They were all in deep ravines, which the tortoises fell in and could

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not escape, and the bones were lying there in the bottom of the ravine.

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The crew was not used to gathering bones - it's not part

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of their standard marching orders,

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but I said, "Look, fellas, this is Pinta.

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"No-one else is making any more of these things.

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"We've got to gather these bones up". We rounded up everything, from used plastic food bags to my underwear,

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to whatever else you could find, to parcel these things up.

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And we got them back here,

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and they're boxed up in the reference collection in the Darwin station now.

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There was something strange about these bones.

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All but one of the 15 skeletons were from male tortoises.

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It seems the final blow to the Pinta tortoise was a lack of females.

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Exactly what happened on Pinta Island that led to the disappearance

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of the female tortoises will never be known.

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It happened a long time ago.

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The animals in the ravines were old ones.

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They had walked around 100 years before they fell into that ravine and died in the bottom of it.

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And sometimes we'd find skeletons of three animals mixed in one ravine.

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So it's a damn odd way to go -

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extinct by masculinisation and falling into potholes.

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It's not the normal pattern.

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But I think it's what happened on Pinta.

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Lonesome George may never have met a female tortoise on Pinta.

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Now, any hope of introducing him to one has gone and, with it,

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the chance of baby Pinta tortoises.

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But there's no reason he shouldn't enjoy other female company,

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and the next best thing -

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perhaps father their offspring.

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Lonesome's lack of interest in his female companions has sparked a lot of comment in the outside world.

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There have been rumours he doesn't really know what to do!

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It's even been suggested that perhaps George is gay!

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But maybe all he needs is a helping hand.

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Graciela Cevello was approached by an official

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of the National Park with a special assignment.

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The hope was if they could collect sperm and freeze it,

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one of the females could be artificially inseminated.

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Graciela did succeed in arousing George, but he never obliged with any sperm.

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Eventually the project was abandoned

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and George returned to his solitary ways.

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Every failed attempt to reproduce Lonesome

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builds to the unavoidable conclusion -

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decades ago, and without anyone really noticing,

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the Pinta Island tortoise passed the point of no return.

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But for a miracle, when Lonesome George dies, his race dies with him.

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It may be too late to save the Pinta tortoise, but in the corral

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next door to Lonesome are tortoises that were rescued in the nick of time.

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These tortoises were also the last of their kind.

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They're the only ones found by an extensive search of Espanola Island in the mid-'60s.

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Their fate would have been the same as Lonesome George,

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but for the fact there are 15 of them - three males and twelve females.

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For such ponderous animals, they can be remarkably frisky.

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They're also remarkably fertile.

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If mating is successful,

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a female tortoise will dig a hole in the ground and lay up to 20 eggs.

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Fausto is not only caretaker of Lonesome George, but also head

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of this captive-breeding programme,

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and he and his team have achieved spectacular success.

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These three-month-old babies will be fed and sheltered under Fausto's

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watchful eye until big and strong enough to fend for themselves.

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The plan is then to return them to their native Espanola Island.

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Following this success, tortoise breeding programmes were

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established for other tortoise populations on other islands.

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Isabela Island is by far the largest in Galapagos.

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It has five distinct tortoise populations on five volcanoes.

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This central volcano

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is home to the largest population in the archipelago.

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They number several thousand animals.

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Because they live in these inaccessible heights,

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they escaped the ravages of the 18th- and 19th-century sailors.

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The two southern populations didn't fare so well.

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Incidents of illegal tortoise hunting and eating still occur today.

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It's thought this is the work of disgruntled fishermen sending

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a grisly message to the National Park.

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A new breeding centre was established by the National Park

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to rescue the two southern populations of Isabela tortoises.

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Oscar Carvajal runs the breeding programme.

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Though troubled by the continuing hunting, Oscar is concerned by a more insidious

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danger facing the tortoises -

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another legacy of man's arrival on these once pristine islands.

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Goats are perfectly adapted to the arid Galapagos climate.

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They will feed on almost anything, and have an incredible capacity to reproduce.

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Introduce a few animals onto an island, and after a few years

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there will be several thousand.

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Goats are the biggest threat to tortoises on most of the islands,

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including Isabela.

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They strip the vegetation bare, leaving nothing for the tortoises to eat.

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Giant tortoises evolved, in the absence of mammals,

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as the principal herbivore on the Galapagos Islands.

0:32:490:32:52

They simply cannot compete with the fleet-footed,

0:32:520:32:56

rapidly reproducing goats.

0:32:560:32:58

The National Park decided this severe problem

0:32:580:33:01

needed a radical solution.

0:33:010:33:04

Helicopters and sharp-shooters

0:33:270:33:29

flown in from New Zealand patrolled 400,000 hectares

0:33:290:33:34

of goat-infested island - a landscape denuded

0:33:340:33:37

by the insatiable pests.

0:33:370:33:39

There were 100,000 goats on northern Isabela alone. Now there are none.

0:33:560:34:02

It's the first time such a large-scale mammal eradication project

0:34:020:34:07

has achieved such success.

0:34:070:34:09

The value of goat eradication is certainly not lost on Fausto.

0:34:550:35:00

The latest generation of offspring from the 15 Espanola tortoises

0:35:000:35:05

rescued from the wild are almost ready for release onto their native island.

0:35:050:35:09

They're weighed and measured

0:35:110:35:13

and will then be quarantined for two months.

0:35:130:35:16

Their return to Espanola will be timed to coincide

0:35:160:35:20

with the rainy season, to ensure there is vegetation for them to eat.

0:35:200:35:24

Espanola is a small, uninhabited and sparsely vegetated island

0:35:300:35:34

in the south of the archipelago.

0:35:340:35:37

This island, like Isabela, was once over-run with goats, but not any more.

0:35:390:35:45

The island's small size made the goat cull here

0:35:450:35:49

a much easier prospect than on Isabela.

0:35:490:35:51

The last goat was shot in 1978 and since then, Fausto has been bringing

0:35:510:35:57

baby tortoises back to Espanola.

0:35:570:36:00

With their island free of goats, the future of Espanola's tortoises ought to be assured.

0:37:070:37:13

But that's not the end of the story.

0:37:130:37:15

The National Park have received threats from angry fishermen that

0:37:150:37:20

goats might at any time be released back onto the remoter islands.

0:37:200:37:24

And there are other threats far harder to pinpoint and deal with

0:37:260:37:30

that affect not just tortoises but all the endemic species.

0:37:300:37:34

They arise from the very source that some have hailed as the salvation of the animals of the Galapagos.

0:37:340:37:40

Three planes a day fly in from the mainland.

0:37:450:37:49

Visitors from all around the world arrive, eager to see for themselves

0:37:510:37:56

the remarkably tame wildlife in this apparently pristine archipelago.

0:37:560:38:01

But the endless stream of people

0:38:010:38:03

has brought to an end the islands' isolation.

0:38:030:38:07

The isolation that was for so long

0:38:070:38:10

the Galapagos wildlife's best protection from human disturbance.

0:38:100:38:14

The tourists could be endangering the wildlife they've come to see.

0:38:140:38:19

The endemic animals have evolved largely free from competition or disease.

0:38:200:38:26

This leaves them especially vulnerable to any germs the visitors might be inadvertently carrying.

0:38:260:38:31

Giant tortoises have been dying from a type of influenza,

0:38:370:38:41

similar to that found in humans.

0:38:410:38:44

Verna Cedeo is head of a new genetics lab set up in Galapagos

0:38:480:38:53

to help with conservation,

0:38:530:38:55

identifying potential biological threats to the wildlife and seeking solutions.

0:38:550:39:00

The tortoise has to be immobilised before its health check.

0:39:040:39:08

This tortoise is one of a population living

0:39:080:39:14

in the highlands of Santa Cruz,

0:39:140:39:19

the island with the highest human population and greatest number of visiting tourists.

0:39:190:39:24

So far, the tortoise numbers are not being seriously affected by the virus.

0:39:240:39:30

This monitoring is to make sure the situation doesn't get any worse.

0:39:310:39:37

But the threat from disease is a serious one.

0:39:370:39:41

Although the tortoises of Santa Cruz may be safeguarded for now,

0:40:180:40:22

very worrying results are coming to light in studies of another iconic Galapagan creature.

0:40:220:40:28

Darwin's finches, so named because they are said to have inspired

0:40:320:40:37

the great naturalist's theory of evolution, are a group of 13 species

0:40:370:40:41

of birds endemic to the islands.

0:40:410:40:44

Each species has a unique role within the islands' ecology.

0:40:440:40:49

Sarah Huber has been investigating a population of these birds

0:40:530:40:58

in the highlands of Santa Cruz above the main town of Puerto Ayora.

0:40:580:41:03

She has uncovered a potential disaster.

0:41:050:41:09

These maggots are the larvae of a parasitic fly.

0:41:120:41:16

They literally eat the nestlings alive.

0:41:160:41:19

As you get more and more parasites, their feeding holes become bigger and

0:41:190:41:23

you actually get these large holes in the body cavity.

0:41:230:41:26

If the parasite is prevalent throughout the entire island, and

0:41:260:41:31

we see rates of mortality like this on the entire island, then chances of extinction are very likely.

0:41:310:41:38

These Darwin's finches, famous for bringing the idea of evolution

0:41:400:41:44

to life, are following Lonesome George down the road to extinction.

0:41:440:41:50

The parasite, I guess, came from mainland Ecuador.

0:41:500:41:53

Nobody really knows how it got over.

0:41:530:41:56

Speculations are that it came with food or other, you know, on a boat or an airplane.

0:41:560:42:02

The port of Puerto Ayora,

0:42:040:42:06

capital of the tourism industry, is constantly buzzing with activity.

0:42:060:42:10

Everyday, boats are bringing goods from the mainland to provide for

0:42:130:42:17

the tourists, and all the people who work in the tourist industry.

0:42:170:42:22

Every boat carries the risk of alien species hiding among the cartons of fruit and veg.

0:42:220:42:27

And the flow of goods is only set to increase.

0:42:270:42:31

Tourism in Galapagos is growing by 10% every year.

0:42:320:42:38

The sleepy fishing town of Puerto Villamil on Isabela,

0:42:400:42:45

former centre of the sea cucumber fishery, is already preparing for a fresh economic boom.

0:42:450:42:51

A new airport will be receiving flights directly from the mainland by the end of the year.

0:42:520:42:57

The islanders are busy getting ready for a flood of visitors.

0:42:590:43:02

New hotels and restaurants

0:43:020:43:04

are going up all over town.

0:43:040:43:08

The boom in tourism is driving a boom in immigration.

0:43:110:43:15

The resident population of Galapagos is increasing by 6% every year.

0:43:190:43:24

After all, tourism has made these islands one of Ecuador's richest provinces.

0:43:240:43:31

But once here, the immigrants also feel the pressure of so many people.

0:44:030:44:08

Puerto Ayora is rapidly filling every corner of space set aside

0:44:290:44:34

for the town by the National Park.

0:44:340:44:37

The buildings are going up to house people drawn in from the mainland

0:44:370:44:42

to fill jobs created by the ever-expanding tourism industry.

0:44:420:44:46

Tourism and consequently population growth is spiralling out of control.

0:44:460:44:52

One thing is for sure, tourism is here to stay.

0:45:360:45:40

To limit the risk of introducing alien species and disease, there

0:45:400:45:44

need to be major changes to the way tourism is managed and supported.

0:45:440:45:48

The flood of imports to feed the tourists, for example,

0:45:480:45:51

needs to be minimised, and that means food self-sufficiency.

0:45:510:45:56

There is little established agriculture on Galapagos.

0:45:560:46:00

A large acreage of the verdant highlands was

0:46:000:46:02

cleared by early settlers before the National Park was ever created,

0:46:020:46:06

but this was just for cattle.

0:46:060:46:08

Now these pastures hold the potential for a self-sustainable archipelago, if the problems

0:46:100:46:16

of growing vegetables organically on these soils can be ironed out.

0:46:160:46:22

The organisation Fundar Galapagos

0:46:220:46:26

aims to promote new ways of life for the islanders.

0:46:260:46:30

Self-sufficiency would clearly reduce the volume of imports,

0:47:140:47:19

but it requires the acceptance of fewer exotic goods by local people,

0:47:190:47:22

especially by the stream of new arrivals who don't all appreciate

0:47:220:47:26

the need to live within sustainable limits.

0:47:260:47:29

Immigration is being driven by a demand for skilled labour.

0:47:290:47:33

A new generation of local residents need to be better qualified for

0:47:530:47:57

a life in tourism, if the influx of outsiders is to be stemmed.

0:47:570:48:01

One initiative is this cookery class established in the town's largest school.

0:48:010:48:05

The project is run by Chef Pablo Guerrero from one of the larger hotels.

0:48:050:48:12

The idea is not simply to teach the students haute cuisine, but to give them a better

0:48:430:48:48

understanding of why this place they live in is so special and why there

0:48:480:48:53

needs to be restrictions in place to preserve the islands.

0:48:530:48:57

There are many ways an educated and enlightened generation

0:49:290:49:32

of Galapagans could contribute to the protection of their islands.

0:49:320:49:37

Virna Cedea regularly invites school classes into her genetics laboratory

0:49:370:49:42

to give them an insight into conservation work within Galapagos.

0:49:420:49:46

A new generation of native islanders, appreciating conservation and the need to live sustainably,

0:50:270:50:32

who reject the mentality of "take what you can without regard for the future"

0:50:320:50:38

surely offer the best hope for the preservation of these islands.

0:50:380:50:42

The future of these islands really does lie with the people who live here.

0:52:480:52:53

If the people of Galapagos can pull together towards a shared goal

0:52:530:52:57

to preserve what is theirs, the crisis might yet be averted.

0:52:570:53:02

Galapagos is still the most pristine tropical archipelago in the world,

0:53:040:53:09

but it no longer enjoys the isolation that both shaped and preserved it.

0:53:090:53:14

It remains a global treasure, a unique Garden of Eden.

0:53:140:53:18

But a greater understanding of its fragility is needed, if its beauty and innocence is to be sustained.

0:53:180:53:25

The alternative is staring us in the face.

0:53:300:53:34

Like a ghost back from the grave, Lonesome George

0:53:340:53:37

is an ever-present reminder of the vulnerability of Galapagos wildlife.

0:53:370:53:42

Even though Lonesome was saved, the Pinta tortoise is effectively extinct.

0:53:420:53:49

But that's not the end of the story for Pinta Island.

0:53:490:53:52

The National Park hope to return it to the condition that existed

0:53:520:53:56

before the first human set foot there.

0:53:560:53:59

Central to this ambition,

0:53:590:54:01

and right next door to Lonesome, are the Espanola tortoises.

0:54:010:54:06

Genetic studies have revealed0

0:54:060:54:07

they are the closest relation to Lonesome George,

0:54:070:54:11

making Espanola tortoises the most likely ancestors of those on Pinta.

0:54:110:54:17

But the two islands are at opposite ends of the archipelago,

0:54:170:54:20

which begs the question, how did the ancestors of Lonesome George

0:54:200:54:24

make it from Espanola all the way to Pinta?

0:54:240:54:28

It's probably 150 miles away, I wouldn't be surprised.

0:54:280:54:32

But if you look at the sweep of the Humboldt current coming up South America

0:54:320:54:38

and through the archipelago,

0:54:380:54:40

it sort of washes around Espanola and carries on up to Pinta.

0:54:400:54:45

So the tortoise wouldn't need to do any cross-current dynamic swimming.

0:54:450:54:52

It would just need to accidentally fall in the sea and survive a week

0:54:520:54:56

or two, bobbing around like a cork in the ocean,

0:54:560:54:59

because the same shell and the same thick skin that allow this animal

0:54:590:55:03

to survive where you and I would die

0:55:030:55:06

of thirst in two days, keeps the sea water out.

0:55:060:55:09

And the other good thing is, they have long necks,

0:55:090:55:13

so a normal tortoise would probably find its head under water

0:55:130:55:17

most of the time if it was floating at sea,

0:55:170:55:21

but these have a little periscope-like head.

0:55:210:55:23

They just have to have the luck and the lottery of life to wash up on Pinta.

0:55:250:55:30

Fausto is returning to Pinta Island for the first time in 30 years.

0:55:400:55:45

He is accompanied by a team of National Park Rangers and their hunting dogs.

0:55:470:55:52

They are here to to check that the island is free of goats.

0:55:520:55:55

The National Park officials are considering a plan to put Espanola tortoises onto Pinta Island.

0:55:570:56:04

Pinta is one of the remotest and least-visited islands

0:56:150:56:18

in the Galapagos.

0:56:180:56:20

Nobody has ever lived here, and tourists are forbidden from visiting these shores.

0:56:200:56:25

It remains one of the most untouched islands

0:56:270:56:31

in an archipelago itself heralded as the most pristine in the world.

0:56:310:56:35

The only major disturbances have been the slaughter

0:56:380:56:41

of the tortoises and introduction of three goats in the '50s.

0:56:410:56:46

Their 40,000 descendants were eradicated 20 years later

0:56:460:56:49

by Fausto and a team of rangers.

0:56:490:56:52

Now that the goats have gone, the island has no large herbivores,

0:57:340:57:38

the role once fulfilled by the ancestors of Lonesome George.

0:57:380:57:43

Thinking ecologically, you might want to put Espanola tortoises on Pinta,

0:57:430:57:47

just to make the ecology complete.

0:57:470:57:51

And possibly even repeat the evolutionary experiment that led

0:57:510:57:55

from Espanola to Pinta tortoises

0:57:550:57:56

at some fairly remote time in the past.

0:57:560:58:00

Give it another try.

0:58:000:58:01

See if the island shapes them the same way.

0:58:010:58:04

Subtitles by Red Bee Media Ltd - 2006

0:58:400:58:44

E-mail [email protected]

0:58:440:58:48

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