Crabs Trade Shells in the Strangest Way | BBC Earth

As a hermit crab grows its shell becomes a tighter fit so eventually the crabs need to move into a bigger one, leading to an amazing exchange. Taken from Life Story. Subscribe to BBC Earth: http://bit.ly/ydxvrP Watch David Attenborough Dynasties series trailer here: https://www.youtube.com/watch?v=JWI1eCbksdE --~-- WATCH MORE: New on Earth: https://bit.ly/2M3La96 Oceanscapes: https://bit.ly/2Hmd2kZ Wild Thailand: https://bit.ly/2kR7lmh Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you ll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn t get more exciting than this. This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/contact-us/