Other forms: starfishes
A starfish is a marine animal with five pointed arms. Starfish live in all the oceans on Earth.
Not all starfish are star-shaped (though most are), and they're not actually fish. These fascinating invertebrates, also called sea stars, live in every possible marine habitat, from the depths of the ocean to coral reefs and tide pools. Starfish are usually shaped like a five-pointed star, but they can have as many as 50 arms whose tiny suckers help them move along the ocean floor. They come in almost every color imaginable, including white, purple, bright red, and pink.