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/Childhood & Adolescence

What to make of a Riot Grrrl? A snapshot of feminism and high school in the 1990s

18 minutes

ORIGINAL
Video/Logic

Western logic has held contradictions as false for centuries. Is that wrong?

6 minutes

Video/Demography & Migration

Amid massive urbanisation and modernisation, rural Japan persists in idiosyncratic corners

30 minutes

Essay/Human Evolution

Sex makes babies

As far as we can tell, no other animal knows this. Did our understanding of baby-making change the course of human history?

Holly Dunsworth & Anne Buchanan

Video/Philosophy of Science

How LSD helped a scientist find beauty in a peculiar and overlooked form of life

6 minutes

Idea/Astronomy

What high-speed astronomy can tell us about the galactic zoo

Christopher Kochanek

Essay/Evolution

Aliens in our midst

The ctenophore’s brain suggests that, if evolution began again, intelligence would re-emerge because nature repeats itself

Douglas Fox

Video/Biology

From egg to the air: 21 days of bee development condensed into one mesmerising minute

1 minutes

Idea/Anthropology

It’s not that your teeth are too big: your jaw is too small

Peter Ungar