This episode looks at how young animals talk. Andy Day learns that lions aren't born with loud roars. In Antarctica, a penguin chick can be heard by his mum amid 150,000 other penguins. A baby macaque must learn the value of funny faces if she is to fit in.

Young animals must learn to hide. Andy Day sees how coatis follow mum's tail to safety in the forest. Eider ducks keep a wolf busy while their ducklings find a safe spot. The big mouthed hap is strangest of all - the young fish hide in its mouth.