0:00:02 > 0:00:04# At the end of the day When the adventure is done
0:00:04 > 0:00:06# There's time to learn And it's tonnes of fun
0:00:06 > 0:00:07# Come and join me There's new stuff to do
0:00:07 > 0:00:12# I've got a window to the world And some funny friends too
0:00:12 > 0:00:14# Andy's Secret Hideout
0:00:14 > 0:00:18# It's a magical place with so much to see
0:00:18 > 0:00:19# Andy's Secret Hideout
0:00:19 > 0:00:22# Come and hide out with me. #
0:00:25 > 0:00:29Erm... No.
0:00:29 > 0:00:31Hello! Welcome to my secret hideout.
0:00:31 > 0:00:34I'm just looking for a matching pair of socks,
0:00:34 > 0:00:37for my adventure tomorrow. All I can find are odd socks.
0:00:37 > 0:00:40It would be really handy if I could change the colour
0:00:40 > 0:00:43of one of them. Now, I know it sounds like magic,
0:00:43 > 0:00:47but there are lots of animals that can change colour. No, really.
0:00:47 > 0:00:51Some animals are so good at changing colour that they can use it
0:00:51 > 0:00:55for camouflage, so we could have an animal right here in the hideout,
0:00:55 > 0:01:00trying to camouflage itself, and we'd never know. Hey, look!
0:01:00 > 0:01:03Do you know what this is? It's a Yemen chameleon.
0:01:03 > 0:01:06These guys are masters at changing colour.
0:01:06 > 0:01:09They don't just try and camouflage themselves,
0:01:09 > 0:01:12they change colour to communicate with each other.
0:01:12 > 0:01:18And chameleons aren't the only ones. Let's take a look in my bucket.
0:01:21 > 0:01:25This strange animal is called a cuttlefish.
0:01:25 > 0:01:28They can change colour AND they can make funny patterns.
0:01:28 > 0:01:31They do this to warn other cuttlefish away,
0:01:31 > 0:01:33or even find a mate.
0:01:34 > 0:01:39"Hey, get out of here, man! No, not you. You can stay, man."
0:01:43 > 0:01:47Another master of the underwater world is the mimic octopus.
0:01:47 > 0:01:51Not only can it change colour, but it can also change shape.
0:01:51 > 0:01:53Come on, let's take a look.
0:01:54 > 0:01:58Here it is, pretending to be a flatfish swimming across the sand.
0:01:58 > 0:02:02"I can't be an octopus, I'm all flat. See?"
0:02:03 > 0:02:07And now it's pretending to look like a sea snake.
0:02:07 > 0:02:13"Nothing to see here, I'm just a sea snake, going about its business.
0:02:13 > 0:02:17"Definitely not an octopus. I'm a sea snake. You see? Snake."
0:02:20 > 0:02:23That's better! Now, where was I?
0:02:23 > 0:02:27Oh, yes, finding a matching pair of socks for tomorrow.
0:02:27 > 0:02:31Hey, how did you get down here, little fella?
0:02:31 > 0:02:32Oh, look!
0:02:32 > 0:02:36Our chameleon friend has taught the socks how to change colour.
0:02:36 > 0:02:38I've got one sock, two socks.
0:02:38 > 0:02:40A pair of socks.
0:02:40 > 0:02:43Perfect. Well, now my socks are sorted for tomorrow,
0:02:43 > 0:02:45it's time for me to go to bed.
0:02:45 > 0:02:48See you next time for another adventure here in my secret hideout.
0:02:48 > 0:02:50Thanks. Night-night.
0:02:50 > 0:02:53"Night-night, Andy. Sleep well."