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There's a story that unites each of us with every animal on the planet. | 0:00:02 | 0:00:06 | |
It's the story of the greatest of all adventures - | 0:00:06 | 0:00:09 | |
the journey through life. | 0:00:09 | 0:00:12 | |
Animals have just one goal at the end of this journey, | 0:00:13 | 0:00:17 | |
to leave offspring, and every one begins its life | 0:00:17 | 0:00:21 | |
with an irrepressible instinct to survive and overcome the odds. | 0:00:21 | 0:00:25 | |
The drive and inventiveness of animals is breathtaking. | 0:00:25 | 0:00:30 | |
Every aspect of their behaviour, | 0:00:30 | 0:00:32 | |
whether it's spectacular or beautiful, or simply extraordinary, | 0:00:32 | 0:00:36 | |
is their way of meeting a particular challenge. | 0:00:36 | 0:00:40 | |
In this series, | 0:00:41 | 0:00:43 | |
we will see animals of all kinds striving to overcome the obstacles | 0:00:43 | 0:00:47 | |
that face them at each stage in their lives. | 0:00:47 | 0:00:49 | |
They will be strong... | 0:00:52 | 0:00:54 | |
..cunning... | 0:00:58 | 0:01:00 | |
..and ingenious. | 0:01:03 | 0:01:05 | |
They will fight battles... | 0:01:10 | 0:01:12 | |
..and will do whatever it takes to win a mate. | 0:01:30 | 0:01:34 | |
Each success leaves each individual one step closer | 0:01:52 | 0:01:56 | |
to leaving offspring - the next best thing to immortality. | 0:01:56 | 0:02:01 | |
The journey through life begins afresh with every new generation, | 0:02:10 | 0:02:14 | |
as it has for countless millions of years. | 0:02:14 | 0:02:18 | |
It is life's great story. | 0:02:23 | 0:02:26 | |
I'm in South Africa, sitting beside a colony of meerkats, | 0:02:37 | 0:02:43 | |
waiting for this year's youngsters to emerge | 0:02:43 | 0:02:46 | |
and start exploring their world. | 0:02:46 | 0:02:48 | |
-Here they come. -MEERKAT CHATTERS | 0:02:52 | 0:02:54 | |
That's the adult. | 0:02:54 | 0:02:55 | |
They must check the coast is clear. | 0:02:59 | 0:03:01 | |
There's another one. | 0:03:05 | 0:03:07 | |
Ah, there's a baby. | 0:03:11 | 0:03:13 | |
Hello, little one. | 0:03:25 | 0:03:27 | |
We can't know what the future's going to hold | 0:03:31 | 0:03:34 | |
for this little creature. | 0:03:34 | 0:03:36 | |
Just as every one of our histories is unique to ourselves, | 0:03:36 | 0:03:40 | |
so this animal too will have its own story. | 0:03:40 | 0:03:43 | |
HE CHUCKLES | 0:03:50 | 0:03:51 | |
If one of these little creatures, indeed, if any animal | 0:03:56 | 0:04:00 | |
is to become one of life's winners by leaving behind offspring, | 0:04:00 | 0:04:04 | |
then a long and difficult journey lies ahead. | 0:04:04 | 0:04:08 | |
This is the story of life | 0:04:09 | 0:04:12 | |
and, for these little creatures, it's just beginning. | 0:04:12 | 0:04:16 | |
Good luck to you. | 0:04:21 | 0:04:23 | |
Many animals face their greatest challenge | 0:04:31 | 0:04:33 | |
within days, or even hours, of entering the world. | 0:04:33 | 0:04:37 | |
This is when they are smallest and most vulnerable. | 0:04:39 | 0:04:43 | |
The remote Orsted Dal Valley in Greenland, | 0:04:47 | 0:04:51 | |
scene of one of the most extraordinary trials that any animal | 0:04:51 | 0:04:56 | |
must face at the beginning of its life. | 0:04:56 | 0:04:58 | |
Newly hatched barnacle geese. | 0:05:05 | 0:05:08 | |
Their parents chose to nest on top of a huge tower of rock. | 0:05:14 | 0:05:19 | |
Such extreme isolation was the only way | 0:05:27 | 0:05:30 | |
to protect their brood from predators on the ground. | 0:05:30 | 0:05:33 | |
But now there is a price to pay. | 0:05:35 | 0:05:38 | |
Up here, the five goslings may be safe and warm, | 0:05:42 | 0:05:47 | |
but they have nothing to eat and they're getting hungry. | 0:05:47 | 0:05:51 | |
Like their parents, they only eat grass, and to find it | 0:05:53 | 0:05:57 | |
the goslings must first get down there, 400 feet below. | 0:05:57 | 0:06:01 | |
But they won't be able to fly for another eight weeks. | 0:06:06 | 0:06:09 | |
So they'll have to jump. | 0:06:17 | 0:06:19 | |
The father is restless. | 0:06:22 | 0:06:25 | |
He decides it's time for the family to leave. | 0:06:25 | 0:06:29 | |
GOOSE HONKS | 0:06:29 | 0:06:32 | |
He calls to encourage them. | 0:06:32 | 0:06:34 | |
But they are so tightly bonded to their mother | 0:06:40 | 0:06:43 | |
that they will only follow her. | 0:06:43 | 0:06:46 | |
The parents both survived the descent as youngsters. | 0:06:51 | 0:06:55 | |
They're living proof that their chicks can make it. | 0:06:55 | 0:06:58 | |
The fluffy goslings are certainly light and well-padded. | 0:07:01 | 0:07:04 | |
But luck will play its part. | 0:07:09 | 0:07:11 | |
GOOSE HONKS | 0:07:15 | 0:07:18 | |
At the bottom of the cliff, their mother calls for them to join her | 0:07:36 | 0:07:41 | |
and instinct compels them to follow. | 0:07:41 | 0:07:43 | |
CHICK CHIRPS | 0:07:43 | 0:07:45 | |
The gosling spreads its body and flaps its tiny wings | 0:07:57 | 0:08:00 | |
to slow its descent and lessen the impact of inevitable crashes. | 0:08:00 | 0:08:04 | |
If the first collision is belly-first, | 0:08:08 | 0:08:11 | |
it should survive the fall. | 0:08:11 | 0:08:13 | |
This chick jumps off the back of the cliff. | 0:08:25 | 0:08:28 | |
It's less of a drop, | 0:08:30 | 0:08:32 | |
but there's far more risk of getting lost in the crevices below. | 0:08:32 | 0:08:35 | |
The third makes another good jump. | 0:08:40 | 0:08:43 | |
But the fourth slips. | 0:08:46 | 0:08:47 | |
CHICK SQUEALS | 0:08:47 | 0:08:48 | |
Plummeting down headfirst, | 0:08:52 | 0:08:55 | |
too close to the cliff, could bring disaster. | 0:08:55 | 0:08:57 | |
The third gosling is doing better. | 0:09:23 | 0:09:26 | |
Hitting the rock belly-first should prove a life-saver. | 0:09:26 | 0:09:30 | |
But still the tumble goes on. | 0:09:31 | 0:09:34 | |
ADULT GEESE HONK | 0:09:34 | 0:09:36 | |
There is nothing its mother can do but follow it down. | 0:09:52 | 0:09:55 | |
CHICK CHIRPS | 0:10:01 | 0:10:02 | |
One last chick. | 0:10:02 | 0:10:04 | |
The perfect launch. | 0:10:26 | 0:10:29 | |
And a controlled drop. | 0:10:31 | 0:10:33 | |
This is as good a descent as it's possible to make. | 0:10:33 | 0:10:36 | |
Its parents are there to meet it. | 0:11:39 | 0:11:42 | |
A little dazed, perhaps, but all in one piece. | 0:12:05 | 0:12:09 | |
One gosling, at least, hasn't made it. | 0:12:13 | 0:12:16 | |
GOOSE HONKS | 0:12:21 | 0:12:22 | |
And this chick appears to be in a bad way. | 0:12:25 | 0:12:29 | |
GOOSE HONKS | 0:12:37 | 0:12:39 | |
At last, it responds to its mother's calls. | 0:12:41 | 0:12:45 | |
CHICK CHIRPS | 0:12:49 | 0:12:52 | |
The resilience of a barnacle goose chick is extraordinary. | 0:12:53 | 0:12:58 | |
But there are still chicks unaccounted for, | 0:13:02 | 0:13:05 | |
somewhere amongst the rubble. | 0:13:05 | 0:13:07 | |
The parents can't risk searching because they need to lead | 0:13:12 | 0:13:15 | |
their two survivors away quickly, before predators arrive. | 0:13:15 | 0:13:19 | |
CHIRPING | 0:13:19 | 0:13:21 | |
-CHICK CHIRPS -A third one has made it. | 0:13:24 | 0:13:26 | |
But it needs to catch up. | 0:13:34 | 0:13:36 | |
Reunited. | 0:13:52 | 0:13:54 | |
Three out of five chicks have made it. | 0:13:58 | 0:14:01 | |
Without such a dramatic start in life, | 0:14:01 | 0:14:03 | |
it's unlikely any of them would have even got this far. | 0:14:03 | 0:14:07 | |
These chicks will face more dangers in the future, | 0:14:13 | 0:14:17 | |
but, only two days old, they've already survived | 0:14:17 | 0:14:20 | |
the greatest challenge of their lives. | 0:14:20 | 0:14:23 | |
A young animal significantly improves its chances of surviving | 0:14:31 | 0:14:36 | |
if it can grow fast and few babies have more growing to do | 0:14:36 | 0:14:39 | |
in their first weeks than a humpback whale. | 0:14:39 | 0:14:42 | |
In just six weeks, this new-born calf must leave these nursery waters | 0:14:46 | 0:14:51 | |
off Hawaii and start on a 3,000-mile migration | 0:14:51 | 0:14:55 | |
to its feeding grounds in the Arctic. | 0:14:55 | 0:14:58 | |
WHALE SINGS | 0:14:58 | 0:15:01 | |
For that, it will need to be strong. | 0:15:01 | 0:15:03 | |
Twirling at the surface | 0:15:03 | 0:15:05 | |
rapidly develops muscle strength and diving ability. | 0:15:05 | 0:15:08 | |
Before then, this one-tonne calf must double its weight | 0:15:14 | 0:15:18 | |
by drinking over 3,500 pints of its mother's fat-rich milk. | 0:15:18 | 0:15:24 | |
MOTHER SINGS | 0:15:25 | 0:15:26 | |
CALF SINGS | 0:15:28 | 0:15:30 | |
But the milk supply is limited. | 0:15:33 | 0:15:35 | |
Until its mother reaches the feeding grounds, she's fasting. | 0:15:35 | 0:15:38 | |
Humpback calves make such demands of their mothers | 0:15:42 | 0:15:45 | |
that females can only raise one every two or three years. | 0:15:45 | 0:15:49 | |
If the calf is to be ready for the migration, | 0:15:53 | 0:15:56 | |
then what they both need now is to be left in peace. | 0:15:56 | 0:16:00 | |
But here, the birthing season and the mating season coincide, | 0:16:05 | 0:16:11 | |
and that spells trouble. | 0:16:11 | 0:16:13 | |
Male humpbacks will pursue any females, | 0:16:23 | 0:16:26 | |
even if they are still nursing and, so, can't get pregnant. | 0:16:26 | 0:16:30 | |
These 40-tonne males, fired-up with testosterone, | 0:16:45 | 0:16:49 | |
pose a serious threat to any calf that gets caught up in the chase. | 0:16:49 | 0:16:54 | |
WHALE SINGS LOUDLY | 0:16:54 | 0:16:56 | |
As the mother tries to outrun the males, the calf sensibly stays | 0:17:04 | 0:17:08 | |
as close to her as possible to avoid being separated and lost. | 0:17:08 | 0:17:12 | |
WHALE SINGS LOUDLY | 0:17:17 | 0:17:18 | |
WHALE CALLS | 0:17:20 | 0:17:22 | |
WHALE CALLS | 0:17:26 | 0:17:28 | |
As more and more males join the chase, | 0:17:28 | 0:17:31 | |
the mood becomes ever more aggressive. | 0:17:31 | 0:17:33 | |
Now there is a real danger of the calf being injured | 0:17:50 | 0:17:54 | |
by flailing tails and crashing bodies. | 0:17:54 | 0:17:56 | |
Eventually, the males become so pre-occupied | 0:18:11 | 0:18:14 | |
with fighting each other that the calf and her mother can escape. | 0:18:14 | 0:18:18 | |
Even if a calf gets away unharmed, | 0:18:28 | 0:18:31 | |
the ordeal can leave it exhausted. | 0:18:31 | 0:18:34 | |
The dangers from the breeding season will only grow in intensity | 0:18:34 | 0:18:38 | |
and some calves will become so weakened | 0:18:38 | 0:18:41 | |
that they'll struggle to survive the coming migration. | 0:18:41 | 0:18:44 | |
Even the most formidable predators | 0:18:58 | 0:19:01 | |
are surprisingly vulnerable in infancy. | 0:19:01 | 0:19:04 | |
Here in Kenya's Maasai Mara, a lion cub has, on average, | 0:19:06 | 0:19:11 | |
only a one-in-five chance of surviving its first two years. | 0:19:11 | 0:19:15 | |
Which ones do so depends on the strength of the pride | 0:19:17 | 0:19:21 | |
to which they belong. | 0:19:21 | 0:19:22 | |
CUB SQUEAKS | 0:19:23 | 0:19:24 | |
For six weeks, this female cub | 0:19:30 | 0:19:32 | |
has been hidden away by her mother in the long grass. | 0:19:32 | 0:19:35 | |
But today, with her brother and sister, | 0:19:43 | 0:19:46 | |
she's going to join the creche at the heart of her pride. | 0:19:46 | 0:19:49 | |
Adult females provide the food and the first line of defence. | 0:19:58 | 0:20:02 | |
With at least four in her pride, | 0:20:02 | 0:20:04 | |
this cub should be well looked after. | 0:20:04 | 0:20:07 | |
All the lionesses have their own cubs, | 0:20:15 | 0:20:18 | |
who will be both playmates and future allies. | 0:20:18 | 0:20:21 | |
Under the females' watchful eyes, | 0:20:25 | 0:20:27 | |
she can practice her stalking, pouncing and fighting skills. | 0:20:27 | 0:20:32 | |
CUBS GROWL | 0:20:32 | 0:20:33 | |
But there is one more family member to meet | 0:20:57 | 0:21:01 | |
and perhaps the most important of all. | 0:21:01 | 0:21:03 | |
LION PURRS | 0:21:09 | 0:21:11 | |
Her father. | 0:21:12 | 0:21:14 | |
Her ultimate defender. | 0:21:17 | 0:21:20 | |
Marauding rival male lions are a constant threat. | 0:21:22 | 0:21:25 | |
If they overthrew him, they would kill all his cubs | 0:21:25 | 0:21:29 | |
and father their own. | 0:21:29 | 0:21:31 | |
The security of the whole pride, | 0:21:37 | 0:21:41 | |
and this cub's future, | 0:21:41 | 0:21:43 | |
rests on him remaining strong. | 0:21:43 | 0:21:46 | |
But the early days of an animal's life are a very different prospect | 0:21:52 | 0:21:56 | |
if its parents do not support it. | 0:21:56 | 0:21:58 | |
This peculiar, almost alien scene | 0:22:19 | 0:22:22 | |
is, in fact, the emergence of a brood | 0:22:22 | 0:22:25 | |
of orchid mantids from their egg case. | 0:22:25 | 0:22:28 | |
Mantids, like the great majority of animals, play the numbers game. | 0:22:36 | 0:22:42 | |
Having over 60 hatchlings | 0:22:43 | 0:22:45 | |
increases the chances that a few will make it to adulthood. | 0:22:45 | 0:22:49 | |
But during these first minutes, they are especially vulnerable. | 0:22:53 | 0:22:57 | |
They must quickly hide away... | 0:23:11 | 0:23:15 | |
and wait for their soft bodies to harden. | 0:23:15 | 0:23:17 | |
Within 20 minutes, they are transformed. | 0:23:29 | 0:23:33 | |
Now the immediate danger is from each other. | 0:23:36 | 0:23:40 | |
Mantids will eat anything that moves... | 0:23:45 | 0:23:50 | |
including other mantids. | 0:23:50 | 0:23:52 | |
Time to leave. | 0:24:07 | 0:24:09 | |
This tiny insect is now open to attack from predators | 0:24:20 | 0:24:24 | |
lurking in the undergrowth. | 0:24:24 | 0:24:26 | |
Whether an individual mantis survives or not | 0:24:35 | 0:24:39 | |
is partly a matter of chance. | 0:24:39 | 0:24:42 | |
Whether it's spotted by a predator. | 0:24:45 | 0:24:48 | |
Whether it turns right... | 0:24:54 | 0:24:57 | |
or left. | 0:24:57 | 0:24:58 | |
So far, its luck has held. | 0:25:07 | 0:25:10 | |
But this hungry jumping spider is still in pursuit. | 0:25:12 | 0:25:16 | |
A mantis is born with exceptional eyesight... | 0:25:20 | 0:25:24 | |
..but the spider's is even better. | 0:25:25 | 0:25:28 | |
Although this young mantis can't yet fly, | 0:25:32 | 0:25:36 | |
its long forelegs, evolved to catch prey, give it reach. | 0:25:36 | 0:25:40 | |
There seems to be no escape. | 0:26:07 | 0:26:10 | |
But this mantis has a surprising line in self-defence. | 0:26:17 | 0:26:21 | |
Kung fu, praying mantis style. | 0:26:24 | 0:26:26 | |
Of course, it's all bluff, | 0:26:39 | 0:26:42 | |
trying to look bigger and confuse its enemy. | 0:26:42 | 0:26:45 | |
But it's got away with it. | 0:26:48 | 0:26:50 | |
Just staying alive for its first few hours | 0:26:58 | 0:27:02 | |
is a significant accomplishment for a newly hatched insect. | 0:27:02 | 0:27:06 | |
But there's still a long way to go. | 0:27:08 | 0:27:10 | |
With a bit of luck, in two months' time, | 0:27:10 | 0:27:13 | |
it will be as big and beautiful as this orchid mantid. | 0:27:13 | 0:27:17 | |
Or maybe not. | 0:27:29 | 0:27:31 | |
After all, mantids are cannibals. | 0:27:32 | 0:27:35 | |
However, there are plenty more where that one came from. | 0:27:39 | 0:27:43 | |
A young fur seal, | 0:27:57 | 0:27:59 | |
just old enough to be left alone while its mother hunts out at sea. | 0:27:59 | 0:28:02 | |
It won't be long before the pup has to negotiate | 0:28:07 | 0:28:10 | |
these treacherous waters for itself and learn to catch its own food, | 0:28:10 | 0:28:14 | |
while avoiding predators. | 0:28:14 | 0:28:16 | |
But how can he take his first lesson without risking it being his last? | 0:28:24 | 0:28:29 | |
Luckily, the fur seals on this beach in Kaikoura, New Zealand | 0:28:32 | 0:28:37 | |
have, in the last decade, discovered the perfect place to do that. | 0:28:37 | 0:28:41 | |
Surprisingly, the pup heads, not towards the sea, but inland, | 0:28:44 | 0:28:49 | |
on one of the strangest journeys any seal makes. | 0:28:49 | 0:28:53 | |
A stream meets the beach... | 0:28:58 | 0:29:00 | |
..and this pup swims up it. | 0:29:04 | 0:29:06 | |
Each seal pup only makes this journey once. | 0:29:18 | 0:29:22 | |
What drives it to travel deep into the forest is a mystery. | 0:29:22 | 0:29:26 | |
At last, this pup has arrived. | 0:29:52 | 0:29:55 | |
This secluded waterfall makes for a perfect learners' pool. | 0:30:03 | 0:30:07 | |
In this sanctuary, he can join the local pups to learn | 0:30:18 | 0:30:21 | |
manoeuvres that will one day help them escape their enemies. | 0:30:21 | 0:30:25 | |
No-one knows how the first pups found this place, | 0:31:05 | 0:31:08 | |
but each year, more and more young seals make the journey. | 0:31:08 | 0:31:12 | |
They're getting a crucial head-start in life. | 0:31:27 | 0:31:30 | |
And learning is always easier when you're enjoying yourself. | 0:31:35 | 0:31:39 | |
SEAL BARKS | 0:31:42 | 0:31:45 | |
Each seal spends three days in intense training. | 0:31:53 | 0:31:57 | |
Then, after this rite of passage, they head back to the beach. | 0:31:57 | 0:32:02 | |
It won't be long now before they will leave their mothers for good | 0:32:05 | 0:32:09 | |
and put their new skills to the test. | 0:32:09 | 0:32:12 | |
It's now late in the meerkat pupping season in South Africa | 0:32:33 | 0:32:38 | |
and the pups born two months ago are growing well. | 0:32:38 | 0:32:43 | |
This pup has been well cared for and fed, | 0:32:45 | 0:32:48 | |
but now it's time she learned to catch her own food. | 0:32:48 | 0:32:52 | |
One of the great benefits of being raised in meerkat society | 0:32:53 | 0:32:57 | |
is that adults without young of their own help with childcare | 0:32:57 | 0:33:01 | |
and will spend hours teaching the youngsters. | 0:33:01 | 0:33:04 | |
Today's first lesson is ant-hunting. | 0:33:06 | 0:33:08 | |
Being shown the right approach is one thing... | 0:33:10 | 0:33:13 | |
..but when the food bites back, all technique goes out of the window. | 0:33:17 | 0:33:20 | |
Not exactly a resounding success. | 0:33:33 | 0:33:36 | |
However, this helper now has a different kind of lesson in mind, | 0:33:38 | 0:33:43 | |
one designed to bring a pup face to face with danger for the first time. | 0:33:43 | 0:33:48 | |
It will be her biggest test so far. | 0:33:51 | 0:33:53 | |
A scorpion - | 0:34:07 | 0:34:08 | |
an excellent source of protein and a meerkat's favourite food. | 0:34:08 | 0:34:12 | |
But their sting is very painful, much worse than an ant. | 0:34:13 | 0:34:16 | |
The tutor weakens it with a bite before handing it over. | 0:34:18 | 0:34:22 | |
But the pup still has a fight on her hands. | 0:34:25 | 0:34:28 | |
MEERKAT CHATTERS | 0:34:28 | 0:34:30 | |
The idea is to nip off the sting on its tail, | 0:34:42 | 0:34:45 | |
but its pincers are almost as formidable. | 0:34:45 | 0:34:48 | |
The pup's helper keeps a watchful eye on her. | 0:34:57 | 0:34:59 | |
She has disarmed the sting, | 0:35:07 | 0:35:09 | |
but those pincers are still giving her trouble. | 0:35:09 | 0:35:12 | |
MEERKAT CHATTERS | 0:35:17 | 0:35:20 | |
A pause, perhaps for encouragement, | 0:35:31 | 0:35:34 | |
before the helper gives her the nod to finish the job. | 0:35:34 | 0:35:37 | |
At last, a small but significant success. | 0:35:49 | 0:35:52 | |
It's a test that every member of her family | 0:35:58 | 0:36:00 | |
will have to go through... | 0:36:00 | 0:36:02 | |
..and this youngster has passed in triumph. | 0:36:06 | 0:36:09 | |
Back in Hawaii, six weeks have passed. | 0:36:17 | 0:36:21 | |
This humpback whale calf has fallen behind | 0:36:21 | 0:36:24 | |
on the annual migration to the Arctic. | 0:36:24 | 0:36:26 | |
It struggled to grow strong enough and now it's fighting for its life. | 0:36:29 | 0:36:34 | |
Exhausted and weak, it has already been targeted by sharks. | 0:36:36 | 0:36:40 | |
Its mother helps it to the surface to breathe, | 0:36:43 | 0:36:47 | |
which takes its toll on her, too. | 0:36:47 | 0:36:49 | |
This is now a huge test of the strength of their bond. | 0:36:51 | 0:36:55 | |
But suddenly the calf is alone. | 0:37:09 | 0:37:12 | |
Its mother appears to have abandoned it, perhaps to save herself. | 0:37:16 | 0:37:20 | |
Sharks move in. | 0:37:22 | 0:37:24 | |
With a shark on its tail, the end for this calf now seems inevitable. | 0:37:31 | 0:37:37 | |
But bursting from the deep, the mother is back. | 0:37:46 | 0:37:50 | |
And she's brought help. | 0:37:58 | 0:38:00 | |
A male. | 0:38:03 | 0:38:04 | |
Although he's unlikely to be the calf's father, | 0:38:04 | 0:38:07 | |
he does something to help it that has never been witnessed before. | 0:38:07 | 0:38:11 | |
He blows a wall of bubbles, creating a protective screen around the calf. | 0:38:16 | 0:38:21 | |
The sharks are held back. | 0:38:37 | 0:38:39 | |
But not for long. | 0:38:43 | 0:38:45 | |
A shark is soon trailing the whales again. | 0:38:45 | 0:38:48 | |
A bolder strategy. | 0:38:49 | 0:38:51 | |
The aggression the male whales were using against each other | 0:39:00 | 0:39:03 | |
in the breeding season now appears to be aimed at the shark. | 0:39:03 | 0:39:07 | |
As long as there is a chance of the calf surviving, | 0:39:34 | 0:39:37 | |
the bond between mother and young remains extraordinarily strong. | 0:39:37 | 0:39:42 | |
The compulsion of the young to survive | 0:39:44 | 0:39:46 | |
and of adults to protect burns bright, | 0:39:46 | 0:39:50 | |
even against heavy odds. | 0:39:50 | 0:39:51 | |
For many young animals, taking their first steps | 0:40:06 | 0:40:09 | |
away from the protection of parents can be daunting. | 0:40:09 | 0:40:12 | |
Long-eared jerboa live in the remote Gobi Desert of Mongolia. | 0:40:19 | 0:40:24 | |
After six weeks of being cosseted underground with their families, | 0:40:27 | 0:40:30 | |
young jerboa finally emerge to spend their first night alone, | 0:40:30 | 0:40:35 | |
learning to catch food. | 0:40:35 | 0:40:38 | |
Infrared cameras can reveal their lives, | 0:40:41 | 0:40:44 | |
but to this jerboa, the night is completely dark. | 0:40:44 | 0:40:47 | |
Luckily, his hearing more than compensates. | 0:40:49 | 0:40:53 | |
His ears are longer, compared to his body, | 0:40:53 | 0:40:56 | |
than those of any other animal. | 0:40:56 | 0:40:58 | |
In fact, his ears are so sensitive | 0:41:04 | 0:41:06 | |
that every new sound tends to give him a fright. | 0:41:06 | 0:41:09 | |
OWL CALLS | 0:41:12 | 0:41:14 | |
The call of a little owl, a jerboa's main predator | 0:41:14 | 0:41:18 | |
and something worth being nervous about. | 0:41:18 | 0:41:20 | |
OWL CALLS | 0:41:29 | 0:41:31 | |
OWL CALLS | 0:41:34 | 0:41:36 | |
The youngster's challenge is to distinguish danger from dinner. | 0:41:41 | 0:41:45 | |
An aggressive gecko is definitely not on the menu. | 0:41:49 | 0:41:52 | |
A jerboa's hearing is so acute he can even detect sleeping insects. | 0:42:09 | 0:42:14 | |
But it's hard to grab them when you can't see them. | 0:42:17 | 0:42:20 | |
At last, food. | 0:42:29 | 0:42:31 | |
Confidence grows with success. | 0:42:34 | 0:42:36 | |
Learning to take care of yourself is a tiring business. | 0:42:57 | 0:43:01 | |
Rather than return to the family burrow, he naps in the open. | 0:43:03 | 0:43:09 | |
But with his immense ears, it must be hard to tune out. | 0:43:22 | 0:43:27 | |
OWL CALLS | 0:43:29 | 0:43:31 | |
There comes a time when every animal must finally leave youth behind | 0:43:39 | 0:43:44 | |
and enter the adult world for good. | 0:43:44 | 0:43:47 | |
A black-footed albatross on the brink of adulthood | 0:43:54 | 0:43:58 | |
and learning to fly. | 0:43:58 | 0:43:59 | |
Her maiden flight will take her away from this tiny Pacific island | 0:44:07 | 0:44:11 | |
and out to sea. | 0:44:11 | 0:44:13 | |
She will not touch ground again for three years. | 0:44:14 | 0:44:17 | |
But she's not quite ready... | 0:44:20 | 0:44:22 | |
BIRDS CAW | 0:44:22 | 0:44:24 | |
..yet. | 0:44:24 | 0:44:25 | |
Learning to control a six-foot wingspan | 0:44:43 | 0:44:47 | |
in a gusty sea breeze takes practice. | 0:44:47 | 0:44:50 | |
These fledglings have not been fed | 0:44:55 | 0:44:57 | |
since their parents left a few weeks ago. | 0:44:57 | 0:45:00 | |
To find food, they must leave, too. | 0:45:02 | 0:45:05 | |
And eventually one of them takes to the wing. | 0:45:07 | 0:45:10 | |
But maiden flights often prove to be a bit of a false start. | 0:45:15 | 0:45:19 | |
Tiger sharks. | 0:45:57 | 0:45:59 | |
ALBATROSS SQUEALS | 0:45:59 | 0:46:01 | |
They congregate here every year, | 0:46:03 | 0:46:05 | |
precisely when albatross chicks fledge. | 0:46:05 | 0:46:08 | |
If a shark doesn't strike exactly on target, | 0:46:18 | 0:46:23 | |
a lucky albatross may escape. | 0:46:23 | 0:46:25 | |
There can be few animals that have to face such danger | 0:46:33 | 0:46:37 | |
at the very moment they leave home. | 0:46:37 | 0:46:39 | |
It's a remarkable escape, | 0:48:03 | 0:48:06 | |
but a water takeoff is even harder than from land. | 0:48:06 | 0:48:10 | |
This albatross has left youth behind. | 0:48:51 | 0:48:55 | |
It's time to embark on the next step of life's story - | 0:48:57 | 0:49:03 | |
independence in the adult world. | 0:49:03 | 0:49:07 | |
It's been over 30 years since anyone climbed these cliffs. | 0:49:22 | 0:49:25 | |
Producer Tom Hugh-Jones and cameramen Mateo Willis | 0:49:31 | 0:49:34 | |
and Mark Payne-Gill are in Greenland | 0:49:34 | 0:49:37 | |
to film newly-hatched goslings leap from these towering spires. | 0:49:37 | 0:49:42 | |
They can only convey the scale of what these tiny animals | 0:49:46 | 0:49:49 | |
must go through by showing it from their perspective. | 0:49:49 | 0:49:52 | |
Wow. I'm not one for vertigo, | 0:49:56 | 0:49:58 | |
but I just can't imagine what a chick would feel like | 0:49:58 | 0:50:01 | |
having to do this. | 0:50:01 | 0:50:03 | |
We're not going to have much time once they jump, eh? | 0:50:03 | 0:50:05 | |
No. A lot of waiting and then suddenly it all happens. | 0:50:05 | 0:50:07 | |
-Yeah. -It's just that moment, isn't it? | 0:50:07 | 0:50:09 | |
-And you've got 20 seconds to get everything. -Yeah. | 0:50:09 | 0:50:12 | |
Tom spots his first pair of barnacle geese and he has good news. | 0:50:12 | 0:50:17 | |
RADIO: Yeah, copy, Tom. Over. | 0:50:17 | 0:50:18 | |
She's still brooding the eggs, | 0:50:18 | 0:50:20 | |
so we're here in plenty of time, which is good. | 0:50:20 | 0:50:22 | |
The team has some time on its hands to prepare for the big moment. | 0:50:22 | 0:50:26 | |
Three, two, one, go. | 0:50:38 | 0:50:43 | |
Tom helps Mark to get his eye in. | 0:50:43 | 0:50:45 | |
RADIO: I don't think a chick will be quite the same. | 0:50:46 | 0:50:49 | |
Tom checks on the nests every few hours. | 0:50:52 | 0:50:55 | |
All the mothers are still on the nests, but no signs of chicks. | 0:50:55 | 0:50:59 | |
Just have to sit and wait, which is what we do. Over. | 0:50:59 | 0:51:03 | |
The only thing that seems to be hatching round here are mosquitoes. | 0:51:08 | 0:51:12 | |
Have you got mozzie repellent? | 0:51:14 | 0:51:16 | |
I haven't, no. | 0:51:16 | 0:51:17 | |
Sorry, I just swallowed a tonne of mosquitoes. | 0:51:17 | 0:51:20 | |
HE COUGHS | 0:51:20 | 0:51:21 | |
But it's the birds that are constantly on their minds. | 0:51:21 | 0:51:24 | |
-I dreamt about ducks last night. -Ducks? -Yeah. | 0:51:26 | 0:51:29 | |
-Actually, I had a dream about birds as well. -Mark dreamt about chicks. | 0:51:29 | 0:51:33 | |
GOOSE HONKS | 0:51:33 | 0:51:34 | |
The wait is over. I've just spied our first chick. | 0:51:36 | 0:51:39 | |
CHICK CHIRPS | 0:51:39 | 0:51:40 | |
These chicks may jump any time. | 0:51:45 | 0:51:47 | |
Where are the chicks? | 0:51:48 | 0:51:50 | |
Mateo concentrates on trying to film the leaps... | 0:51:50 | 0:51:53 | |
..while Mark focuses on the front of the cliff for the fall. | 0:51:55 | 0:51:59 | |
Their nest is just there above my fingertip. | 0:51:59 | 0:52:02 | |
They've got to go down, down, down, down, down, down, down, down | 0:52:02 | 0:52:05 | |
till they hit the scree slope below. | 0:52:05 | 0:52:07 | |
That's an incredible fall for anything, let alone a gosling. | 0:52:07 | 0:52:10 | |
It's almost 48 hours since the chicks hatched, | 0:52:13 | 0:52:17 | |
so they're really getting to the limit of how long they can go | 0:52:17 | 0:52:20 | |
before they start getting too hungry, | 0:52:20 | 0:52:23 | |
so we should be on for a big jump. | 0:52:23 | 0:52:26 | |
Just saw the female. | 0:52:28 | 0:52:30 | |
Come on, what you going to do? | 0:52:32 | 0:52:34 | |
-RADIO: -The female is pointing towards the back side of the rocks. | 0:52:34 | 0:52:38 | |
No, no, not the back side. | 0:52:38 | 0:52:39 | |
-RADIO: -I'm going to follow her, saw her head moving. | 0:52:39 | 0:52:42 | |
Come on. He comes forward again. | 0:52:42 | 0:52:44 | |
Come on, Mum and Dad! | 0:52:47 | 0:52:48 | |
-RADIO: -OK, I see the chick now with the dad. | 0:52:49 | 0:52:52 | |
They might be about to go. | 0:52:52 | 0:52:54 | |
-It's going to jump on the far corner. -I've got two chicks. | 0:52:54 | 0:52:56 | |
There it goes, there it goes, there it goes, | 0:52:56 | 0:52:58 | |
There it goes, there it goes, there it goes! | 0:52:58 | 0:53:00 | |
-RADIO: -All the way down, all the way down. Wow! | 0:53:00 | 0:53:03 | |
OK, I didn't see that. That was hidden from my view. | 0:53:03 | 0:53:06 | |
Did you see the last one jump, Mateo? | 0:53:06 | 0:53:09 | |
-RADIO: -I did, until it was flying through the air | 0:53:09 | 0:53:11 | |
and then I didn't catch it. | 0:53:11 | 0:53:13 | |
OK, got the chick, got the chick, got the chick. | 0:53:13 | 0:53:16 | |
GEESE HONK | 0:53:21 | 0:53:22 | |
That was a shock for it, but it survived. | 0:53:22 | 0:53:25 | |
All the chicks jumped where the cliff obscured | 0:53:29 | 0:53:32 | |
Mark and Mateo's view. | 0:53:32 | 0:53:34 | |
What happens next comes as a shock. | 0:53:41 | 0:53:44 | |
-RADIO: -A fox coming up the stream, he's now about to... | 0:53:46 | 0:53:49 | |
Follow the fox. | 0:53:49 | 0:53:51 | |
GEESE HONK | 0:53:54 | 0:53:55 | |
GEESE HONK, CHICKS SQUEAL | 0:53:57 | 0:53:59 | |
-RADIO: -Mark, did you see that? | 0:53:59 | 0:54:01 | |
GEESE HONK | 0:54:01 | 0:54:03 | |
CHICK SQUEALS | 0:54:03 | 0:54:04 | |
-RADIO: -Oh, it's heartbreaking. | 0:54:10 | 0:54:12 | |
I know, I know. I think it's got them all. | 0:54:14 | 0:54:17 | |
That's really sad. | 0:54:20 | 0:54:21 | |
There's nothing you can do. | 0:54:24 | 0:54:26 | |
The fox has its own young to feed. | 0:54:27 | 0:54:31 | |
Life in this barren landscape is desperately tough | 0:54:31 | 0:54:34 | |
for all its inhabitants. | 0:54:34 | 0:54:36 | |
The team has to move on and try to film another nest. | 0:54:39 | 0:54:42 | |
-And I'm going to head off up round here... -Yeah. | 0:54:47 | 0:54:50 | |
..and try and find a good position. | 0:54:50 | 0:54:52 | |
So, this nest here is our last great hope, | 0:54:59 | 0:55:03 | |
probably the only remaining one that we can get a good viewpoint on. | 0:55:03 | 0:55:07 | |
The parents appear eager for their chicks to go. | 0:55:10 | 0:55:13 | |
CHICKS CHIRP | 0:55:13 | 0:55:14 | |
-RADIO: -Stand by, Mark. It looks like it's going to jump. | 0:55:14 | 0:55:17 | |
By the male's feet. | 0:55:18 | 0:55:21 | |
Come on! | 0:55:22 | 0:55:24 | |
Oh, where are you going to go? | 0:55:27 | 0:55:28 | |
Here it goes, here it goes. Chick's going. | 0:55:30 | 0:55:33 | |
Wow! | 0:55:39 | 0:55:40 | |
Oh, my goodness. | 0:55:40 | 0:55:42 | |
Here it comes. | 0:55:42 | 0:55:43 | |
Wow. | 0:55:46 | 0:55:47 | |
-RADIO: -They're all falling exactly the same way, all at once. | 0:55:52 | 0:55:56 | |
Here we go, here we go, here we go. | 0:55:56 | 0:55:58 | |
-RADIO: -Chick's just tumbling down. | 0:56:07 | 0:56:10 | |
Can you see it? | 0:56:10 | 0:56:11 | |
Tumble, tumble. Whoa! | 0:56:12 | 0:56:15 | |
Down the scree slope. | 0:56:16 | 0:56:18 | |
Crikey! | 0:56:18 | 0:56:20 | |
How many chicks can you see? | 0:56:24 | 0:56:26 | |
Erm, I count three. | 0:56:27 | 0:56:29 | |
No visual yet on any foxes. | 0:56:31 | 0:56:34 | |
So far, so good, | 0:56:34 | 0:56:36 | |
and they seem to be moving through. | 0:56:36 | 0:56:38 | |
CHICKS CHIRP | 0:56:38 | 0:56:39 | |
The team is able to film the family | 0:56:44 | 0:56:47 | |
all the way down to the river and safety. | 0:56:47 | 0:56:50 | |
They've witnessed the triumph | 0:56:54 | 0:56:56 | |
of one of the most extreme survival strategies in nature. | 0:56:56 | 0:57:01 | |
I mean, think how far they've had to come | 0:57:01 | 0:57:03 | |
and this is only, what, their third day in the world? | 0:57:03 | 0:57:06 | |
Yeah, it's just great to see them doing what they should be doing now. | 0:57:06 | 0:57:09 |