Natures wonders: How hermit crabs size shells (Introduction)

by David Turell @, Thursday, March 12, 2015, 22:17 (1470 days ago) @ David Turell

As the crabs grow they need a larger shell. This video shows how they line up to size up the right new shell:

A great story in hand-me-downs:

"When a hermit crab spots a new shell, it'll size up the shell for a good fit. If the shell is too big, the prospecting hermit crab will sit back and wait to steal the castoff shell of a larger crab that decides to upgrade. In the meantime, while the first crab waits, other crabs gather around the shell and do the same. When a crab large enough to fit the vacant shell arrives, a bit of orderly chaos ensues."

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