Joel Sartoreのインスタグラム(joelsartore) - 6月15日 23時23分

This is a heart crab photographed at @alaskasealifecenter. They have strong claws and sharp tips on their legs that allow them to grip stone walls and cling to surfaces. Heart crabs are colorful after molting, but quickly have a growth of diatoms and other organisms on their surface that dim their color and allow them to hide in their habitat for protection. This species is a predator to sea urchins, barnacles, tunicates and sponges. The Alaska SeaLife Center must be careful where these crabs are displayed since they could eat other exhibit animals. Heart crabs have been known to crack open snail shells occupied by smaller hermit crabs and eat them. In turn, they are vulnerable to some fish like wolf eels, which are not fazed by crustacean shells.

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