Crustacean is the name given to the group of animals which includes lobsters, shrimps, prawns, crabs, crayfish, hermit crab, barnacles and water fleas. They inhabit the sea, ponds rivers and lakes. Some species also live on land.
The crustaceans have a crust like exoskeleton and jointed legs. Their head and thorax are a joint structure. They have two compound eyes and two antennae which act as feelers. Crustaceans breathe through gills. They feed on dead fish and other decaying animal remains. They also eat sea weed.
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