Of fiddler crabs and their fiddles

A male fiddler crab’s massive pincer serves a claw full of purposes. It’s useful in fighting off males and wooing females, but being big and heavy also makes it a liability. Fortunately, if caught by a predator, the crab can shed this hefty claw and scuttle to the safety of its burrow. Research shows this escape act might be facilitated by the fact that, after losing the claw, the crab runs almost a third faster.

Read the full story over at Hakai: