Healthy people drinking white wine in moderation will not cause special harm to eating hairy crabs. Liquor will not affect the absorption of protein, amino acids, calcium and other nutrients by crabs. Crabs: Animals, Arthropods, Crustaceans, Decapoda, Reptiles. Crabs are crustaceans. Their bodies are protected by hard shells. Crabs breathe with their gills. Taxonomically, crabs are the same kind of animals as shrimps, lobsters and hermit crabs. Most kinds of crabs live in or near the sea, and crabs live in fresh water or land. It's all up to the mother to give birth to young crabs. Every time, the mother crab will lay a large number of eggs, which can reach millions or more. Crabs rely on the geomagnetic field to judge their own direction.