Finding somewhere to keep safe is one of the biggest challenges an animal faces. But some animals don't have to find a safe place - they build one. In this episode, Chris reveals some of the best building animals in the world - a group that is incredibly varied. Accomplished animal architects include everything from beavers to bees and prairie dogs to bowerbirds. They don't only build homes, however - they also make structures to raise their young, store food, catch prey and impress mates. But what can be learnt from their building brilliance?

Originally released by BBC Worldwide Learning, 2021. Streaming video file encoded with permission for digital streaming by Infobase on April 30, 2021.