What is a hermit crab?

A hermit crab is a decapod crustacean. The land hermit crab belongs to the family Coenobitidae which consists of two species: Birgus latro and Coenobita. The term decapod means 10 legs. Only 3 pairs of appendages are visible when the hermit crab is in the shell. The smaller appendages are used to hold the shell […]