Why do we have two of some organs, but only one of others?

Amazing answers to your curious questions

Hop aboard as Daisy Dobrijevic sets sail to discover the world’s most unusual beasts.

Whether mutually beneficial or a parasitic nuisance, Nature’s symbiotic relationships are as multifarious as they are marvellous, says John Lewis-Stempel

● Travel, they say, broadens the mind. It ...

The latest book releases for curious minds

Hoarding is a common animal behaviour. Lots of creatures cache food for times of scarcity. You probably know that squirrels hide nuts and wood mice store seeds, but did you know that fire ants stockpi