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0:00:06 > 0:00:10- Beyond all hills and vales, - Forests, lakes and dales
0:00:11 > 0:00:16- Stands a castle which keeps an eye - On creatures' feats, me oh my!
0:00:17 > 0:00:22- Come closer and see unfurled - Tiny creatures' big, big world.
0:00:23 > 0:00:28- It's a lovely spring morning - as dew drips off the yellow heather.
0:00:28 > 0:00:31- The lake is quiet - but look closely...
0:00:32 > 0:00:36- ..and you'll see - all kinds of little creatures.
0:00:37 > 0:00:41- Mali the mayfly nymph - is preparing to move house.
0:00:41 > 0:00:46- This lake has been a good home to - me but it's time for me to move on.
0:00:46 > 0:00:49- I wonder what it's like on dry land?
0:00:50 > 0:00:54- Mali has almost grown up but - she needs to shed her old skin...
0:00:54 > 0:00:57- ..before turning into a real insect.
0:00:58 > 0:01:01- On the lake's surface, - many of Mali's friends...
0:01:01 > 0:01:04- ..have left their jackets of skin - behind.
0:01:08 > 0:01:11- These tadpoles will turn into toads.
0:01:11 > 0:01:14- They will eventually leave the lake.
0:01:17 > 0:01:20- These skin jackets are delicious.
0:01:22 > 0:01:25- Don't be so greedy. Give me some.
0:01:25 > 0:01:27- Stop pushing.
0:01:29 > 0:01:31- That's mine, leave it, leave it.
0:01:31 > 0:01:34- No, I found it first.
0:01:36 > 0:01:38- Leave it, leave it.
0:01:42 > 0:01:46- Mali eats pondweed - to increase here energy levels.
0:01:46 > 0:01:48- She can't wait to become a fly...
0:01:48 > 0:01:51- ..but she only has a few days - out of the water...
0:01:52 > 0:01:54- ..to find a mate and lay some eggs.
0:02:03 > 0:02:06- These water boatmen - have only just been born.
0:02:06 > 0:02:10- Berwyn and his friends - enjoy swimming on their backs.
0:02:10 > 0:02:15- They use their hairy legs to row - and shoot up to the surface for air.
0:02:16 > 0:02:19- Look at me! - I've only just learnt to swim.
0:02:19 > 0:02:21- I'm already a great swimmer.
0:02:24 > 0:02:28- Beti the snail stays on - the water's surface... upside-down.
0:02:32 > 0:02:34- It's so busy here today.
0:02:34 > 0:02:36- All the mayflies are leaving.
0:02:37 > 0:02:40- In the meantime, - Mali turns into a fly.
0:02:40 > 0:02:43- Half her body - is outside her old skin...
0:02:43 > 0:02:46- ..and her new wings are ready - for flying.
0:02:50 > 0:02:53- I'm almost free from this skin.
0:03:00 > 0:03:02- Hurry, Mali, there's danger nearby.
0:03:02 > 0:03:06- Bleddyn the diving beetle - is searching for his next meal.
0:03:16 > 0:03:19- The perfect place to hide.
0:03:19 > 0:03:23- All I have to do is wait - for something tasty to come by.
0:03:28 > 0:03:30- Bleddyn's body is transparent.
0:03:30 > 0:03:33- You can see - what he ate for breakfast.
0:03:36 > 0:03:40- Berwyn's swimming - close to Bleddyn's tail.
0:03:42 > 0:03:45- Off you go, - or I'll snap you up for lunch.
0:03:51 > 0:03:55- Is he always like this? - I'm going to play somewhere else.
0:03:59 > 0:04:03- Mali is still waiting - to turn into a mayfly.
0:04:03 > 0:04:05- These things take time.
0:04:09 > 0:04:11- I hope this doesn't take - much longer.
0:04:12 > 0:04:14- I'm so tired.
0:04:19 > 0:04:22- Hey, Mam, there's a horrible beetle - over there.
0:04:24 > 0:04:27- Keep out of his way. You don't - want to end up in his belly.
0:04:28 > 0:04:35- Finally, after hours of waiting, - Mali's turned into a real mayfly.
0:04:38 > 0:04:41- I'd better find a partner.
0:04:43 > 0:04:47- Off she goes, - flying for the first time.
0:04:47 > 0:04:49- Cheerio, Mali.
0:04:57 > 0:04:57- .