How Do Crabs Camouflage the Environment?

The hairy seaweed crab likes to eat its own camouflage. Andi can definitely see where the name comes in - it looks like it's furry like a bear, you know? Ye, totally. In some cases it looks like a cartoon animation of a crab being electrocuted. It's got like animated electricity lines all around it. Also, sometimes it is just a gorgeous arthropod.