Squids belong to the kingdom Animalia. This kingdom comprises all animals, which are multicellular organisms that are generally motile and responsive to their environment.
Within the Animalia kingdom, squids are classified under the phylum Mollusca, which includes soft-bodied animals usually with a hard shell. More specifically, squids fall under the class Cephalopoda, a group characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles.
The classification of squids highlights their unique adaptations and evolutionary history, including their complex nervous system and ability to change colors and patterns for communication and camouflage.