March 8, 2015 at 7:53 pm

The Great Hermit Crab Shell Swap

by twistedsifter

 

When a big, new shell washes ashore, hermit crabs congregate and position themselves from largest to smallest in a vacancy chain where everyone tries to upgrade to a bigger home. An excerpt from BBC’s Life Story Series (episode ‘Home’) and narrated by David Attenborough.

 

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