What is crustacios?

Crustaceans are a group of arthropods that include lobsters, crabs, shrimps, prawns, barnacles, and crayfish. They are found in marine, freshwater, and terrestrial habitats.

Crustaceans have a hard exoskeleton that protects them from predators and also provides support to their bodies. They also have jointed legs that allow them to move and swim through water.

Most crustaceans are carnivorous, feeding on small fish, plankton, and other small animals. Some, like barnacles, are filter feeders and feed on microscopic organisms.

Crustaceans have a complex nervous system and are capable of sensing their environment through chemical and tactile cues. Some species are social and live in large colonies, while others are solitary.

Many crustaceans are harvested for human consumption and are an important commercial resource. They are also commonly kept as pets in aquariums.