Shell swap

5 minutes

Why are Caribbean hermit crabs lining up on a beach? For housing, of course

For most people, the words ‘hermit crab’ likely bring to mind shy, near-motionless crustaceans sitting in a cage in the corner of someone’s bedroom. In their natural habitats, however, hermit crabs are clever, highly social creatures capable of living more than 20 years. This excerpt from the award-winning BBC One nature documentary series Life follows a group of hermit crabs on a small Caribbean island off the coast of Belize. Faced with either finding new shells or baking to death under the intense heat of the sun, the group takes part in a mutually beneficial, oceanside housing swap that truly needs to be seen to be believed.

Director: John Brown

Producer: Ian Gray, Michael Gunton

Video/Gender & Sexuality

In southern Mexico, a long-acknowledged ‘third gender’ is not masculine or feminine

9 minutes

ORIGINAL
Video/Ethics

If soldiers act with unjust aggression they are as culpable as civilian criminals

6 minutes

Video/Design & Fashion

A film that dreams of a poem that dreams of tragedy and love

4 minutes

Video/Astronomy

The plodding photon, or how the speed of light looks sluggish on a galactic scale

45 minutes

Essay/Mathematics

How to play mathematics

The world is full of mundane, meek, unconscious things embodying fiendishly complex mathematics. What can we learn from them?

Margaret Wertheim

Idea/History of Science

The missing fossils matter as much as the ones we have found

Adrian Currie & Derek Turner

Video/Evolution

A cut-throat case of evolutionary backstabbing in the Peruvian rainforest

3 minutes

Essay/Physics

This granular life

That the world is not solid but made up of tiny particles is a very ancient insight. Is it humanity’s greatest idea?

Carlo Rovelli

volume_up
play_arrow
pause
Idea/Physics

Why we can stop worrying and love the particle accelerator

Joel Frohlich