David Attenborough explores whether there is counting in the natural world. Show more

David Attenborough investigates two shells that have proved to be winners in evolution: the tortoise's shell and the shells of birds' eggs. Show more

Animals and plants with abilities so remarkable they seem almost supernatural.

David Attenborough looks at how the bodies of some animals stretch and shrink in extraordinary ways. Show more

The blue whale and the flamingo both have strange bodies determined by their diet. Both are oddities in their own groups and yet both are curiously similar. Show more

Sir David Attenborough examines how the curious minds of orangutans and crows helped them become inventive. Show more

Looking at how some animals can regenerate entire body parts, including salamanders able to regenerate entire legs and tails to replace ones they've lost. Show more

David Attenborough examines animals with extreme young. The panda gives birth to the smallest baby of any mammal, while the kiwi's egg is almost too large to lay. Show more

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

Sir David investigates creatures that have made the ordinary extraordinary. Show more

Sir David tells the stories of animals that sent shockwaves through the scientific world.