Sir David Attenborough examines the mysteries behind some of nature's most fascinating creatures and plants. The giraffe's stretched neck has intrigued people for centuries. Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. How can the skin of two very different animals help them live long and healthy lives? Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. Female Komodo dragons can reproduce without ever having contact with a male. Show more

Sir David Attenborough examines the mysteries behind fascinating creatures and plants. The giant squid has the largest eyes known in the animal kingdom. But what is it looking at? Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. Research is revealing hidden plant senses, such as flowers that use electrical signals. Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. Animals usually behave in a way that is characteristic of their gender, but not always. Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. Are the defensive armours of the rhino and the hedgehog really what they seem? Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. Humans are not alone in using medicines against injuries and infection. Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. The bodies of some animals stretch and shrink in extraordinary ways. Show more

Sir David Attenborough examines the mysteries behind some fascinating creatures and plants. How have the curious minds of orangutans and crows helped them become so inventive? Show more