Cuttlefish are marine animals belonging to the cephalopod family, closely related to squid and octopuses. They possess a unique internal shell called a cuttlebone, which helps control buoyancy. These intelligent creatures have advanced camouflage abilities, changing their color and texture to blend with surroundings. Cuttlefish have large, W-shaped pupils, providing excellent vision. They communicate using color patterns and body language. As carnivorous predators, they feed on small fish and crustaceans, using two elongated tentacles to catch prey. Cuttlefish have a short lifespan, typically living 1-2 years. They reproduce once, laying eggs in clusters before dying.