Decorator Crab & Ocean Floor



Relationship: Commensalism

"The decorator crab uses items it finds on the ocean floor to camouflage itself. These crab have bristles on their backs which behave like Velcro, holding bits of the ocean floor in place. Because its shell does not grow with its body, the crab must molt its shell. “Decorations” are recycled after the molting process."


CAC is a program of the Institute for the Study of Human-Animal Relations at Canisius College in Buffalo, NY.