Crab

Crabs are decapod crustaceans that include the true crabs (Brachyura) and various related groups within the Anomura (such as hermit crabs and allies). They are characterised by a heavily armoured shell, tail segments concealed beneath the body, the ability to run sideways, and a habit of hiding in rocky crevices. Crabs do not form a single natural group; they have evolved the crab-like body plan multiple times from ancestral decapods through a process called carcinisation, making the group polyphyletic. Size varies widely across species, from pea crabs a few millimetres wide to the Japanese spider crab with a leg span up to 4 m (13 ft). Many crabs are free-living marine omnivores, while others are specialist herbivores, carnivores, or parasitic; a substantial number of species are adapted to freshwater or other non-marine habitats. Crabs are significant in human culture and cuisine, are kept as pets (hermit crabs), and appear in mythology and art.

Many crabs are capable of running sideways and commonly hide in rocky crevices.

Diet varies by species: many are free-living marine omnivores; others are specialist herbivores, carnivores, or parasitic; some inhabit freshwater or non-marine environments.

The strongest linked planning options currently surface around destinations such as Caye Caulker, San Pedro (Ambergris Caye), Belize, Athens Riviera and Saronic Gulf and countries such as Belize, Spain, Netherlands for divers building trips around crabs.