In Antarctica a wandering albatross chick masters the largest wings of any bird, while lar gibbons swing through the rainforest as if they are flying. Meanwhile, the great grey owl chicks leap from the top of huge trees.

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.