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Starfish is a carnivore who likes to eat clams, shells and mussels. It has two stomachs, one of which can be pushed outside the body during eating. This tactic allows them to eat large prey (that cannot be swallowed with their small mouth). Starfish mouth is located on the underside of its body.Anus is located on the upper side of the body. Starfish move using tube feet, which consists of hundreds projections on the underside of their bodies.They are used for walking and catching of the prey.Starfish do not have a brain.nus is located on the upper side of the body. Starfish move using tube feet, which consists of hundreds projections on the underside of their bodies. They are used for walking and catching of the prey. Starfish do not have a brain.
Starfish are marine invertebrates. They typically have a central disc and five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates.tarfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. They are opportunistic feeders and are mostly predators on benthic invertebrates. Several species have specialized feeding behaviours including eversion of their stomachs and suspension feeding.