Hermit Crab

Hermit crabs are relatives of true crabs with a body form suited to occupying protective shells. The exposed front bears claws and walking legs, while the abdomen remains sheltered inside. Suitable shells can be valuable resources, leading to inspections, exchanges or competition. Diets often include plant and animal material. The name does not imply a solitary life: many species gather socially, especially where food, shelter or shell opportunities are concentrated.