Amazing Footage Shows Hermit Crabs Line Up from Biggest to Smallest to Swap Shells Posted on 2014/11/11 by pallehh Svar http://emp.bbc.co.uk/emp/embed/smpEmbed.html?playlist=http%3A%2F%2Fwww.bbc.com%2Ffuture%2Fadpolicy%2Fplaylist%2Fp029mzlf%2Fpc%2F&title=Life%20Story%3A%20Home%3A%20Hermit%20crab%20housing%20chain&product=news