Starfish have no brain and no blood. They use filtered sea water to pump nutrients through their nervous system. They don't have gills, scales and fins like fish do. They aren't classified as fish, so scientists prefer to call them Sea Stars. They cannot survive in fresh water. If they somehow lose one of their arms, it can take up to a year to grow back.
The blue sea star digests its prey outside its body by extruding its stomach out through its mouth and consuming the meal. Once the food is digested, the stomach is drawn back inside the body.
The blue sea star moves by using hundreds of tiny tube feet that are on its underside. The tube feet extend and retract, essentially walking or gripping onto surfaces in order to move around. They're slow moving, and it would take about a week for the sea star to walk a mile.
There are about 2,000 species of sea stars. The sea star represents our ability to renew ourselves. We have the power to reinvent ourselves by breaking patterns and resetting our moral compass. There may be times in our lives where everything seems broken beyond repair. In those times, the sea star inspires us to align ourselves with a determination to not give up.
A group of sea stars is called a galaxy.....the sea stars on the ocean floor mirror the stars in the sky.