2. Strong claws: Hermit crabs have strong claws that they use to grip the shells they inhabit, to defend themselves against predators, and to gather food.
3. Long, segmented antennae: Hermit crabs have long, segmented antennae that they use to sense their surroundings and to communicate with each other.
4. Eyes: Hermit crabs have eyes that are located on stalks, which gives them a wide field of vision. This adaptation helps them to spot predators and to find food.
5. Gills: Hermit crabs have gills that they use to breathe. This adaptation allows them to live in both water and on land.
6. Hard exoskeleton: Hermit crabs have a hard exoskeleton that protects them from predators and from the elements. This adaptation also helps them to retain water, which is important for survival in dry environments.
7. Ability to change shells: Hermit crabs have the ability to change shells as they grow. This adaptation allows them to find a shell that is the right size for them and that provides them with the best protection.
8. Commensal relationships: Hermit crabs often form commensal relationships with other organisms, such as sea anemones and sponges. These relationships provide the hermit crab with protection from predators and with a source of food.