The sengi is one of the fastest small mammals on earth - it even has a racetrack. In the Arctic, guillemot chicks leap from clifftop nests. And Chacma baboons walk upright to reach the best food.

Andy Day explains how baby animals are great at teamwork. In Africa, young meerkats learn to look out for their mob. Emperor penguins work together to keep their chicks fed and warm. The fry of convict fish stick together in a shoal to fool bigger fish.