All you need to know about chimpanzees - our closest relative - including where they live, what they eat, and how they use tools ...

Matt Morgan is an intensive care medicine consultant at the University Hospital of Wales. His latest book, One Medicine, is published by Simon and Schuster.

It's tiny, covered in hair, and has spines filled with venom potent enough to cause long-lasting, painful, effects, like muscle spasms, in humans ...