Teuthida, commonly known as squid, are cephalopods with elongated bodies, large eyes, and ten arms. They are known for their ability to change color and their jet propulsion swimming. Squids inhabit diverse marine environments, from shallow waters to the deep sea, and play a crucial role in the ocean food chain.

Teuthida, commonly known as squids, are found in oceans worldwide. They are widely distributed across various marine environments, from the surface to the deep sea, inhabiting regions from the Arctic to the Antarctic.

Squids typically inhabit marine environments with a wide range of temperatures and pressures, from tropical to polar waters. They are found in both pelagic (open ocean) and benthic (ocean floor) zones, often inhabiting waters ranging from the surface down to depths exceeding 1,000 meters.

Squids play a crucial role in the ocean ecosystem as both predators and prey. They feed on a variety of organisms, including fish, crustaceans, and other mollusks, while serving as a key food source for larger marine animals such as whales, sharks, and seabirds. Their ability to adapt to different depths and temperatures allows them to occupy diverse ecological niches within marine environments.