In this episode, Chris Packham investigates how nature's masterminds measure up against human brain power. Looking at a variety of animals, such as ravens, crows, bees and starlings, Chris explores how different animals can use tools, solve complex puzzles, recognise themselves in mirrors and even reason like humans.

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