Starfish

Starfish, often known as sea stars, are echinoderms with a star-shaped body that belong to the Asteroidea class. These names are frequently used for ophiuroids, which are accurately referred to as brittle stars or basket stars in common usage.

Starfish are invertebrates that live in the sea. Starfish normally have a center disc and five arms, though some species have more. The aboral, or upper surface, is covered with overlapping plates and can be smooth, granular, or spiny. Many species are brilliantly colored, ranging from red to orange, while others are blue, gray, or brown in color. A hydraulic system powers the tube feet of starfish, which have a mouth in the center of the oral or bottom surface.

The starfish's small feet enable them to grab surfaces and move around. They don't move very quickly, though. An adult sunflower sea star can move at a whirlwind speed of one meter (approximately one yard) per minute using all 15,000 of its help tube feet, according to the National Oceanic and Atmospheric Administration (NOAA).

Speed: one meter per minute