Squids are fascinating creatures that reside in the ocean. Squid have a large head, 8 arms with suckers, 2 longer feeding tentacles, a beak, 2 large eyes, and 2 hearts. A squid’s skin can flash up to 50 hypnotic patterns. Squids use changing body color patterns to signal each other. The size of a squid can vary from area to area. Some squids are just about 24 inches long, while some can grow up to 40 feet in length. Squid’s body shape and water-jet propulsion system makes it the fastest swimmer of all animals without backbones.
credit: Articulate Matter