Sand grouse chicks in Namibia rely on dad, whose feathers are like a sponge, while an elephant calf has to learn to drink with a trunk. And Ostrich chicks follow mum and dad to find water in the desert.

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.