Sea stars are perhaps more commonly known as starfish, however, there's been a push to change this common name. One reason is that sea stars aren't fish, and while it's unlikely many people would confuse the two, it's still worth trying to be more accurate. The other reason is because sea stars are echinoderms and calling them sea stars would help follow the trend of commons names for echinoderms like sea urchin, sea cucumber, etc. Technically, either name is correct because common names aren't scientific at the end of the day. These invertebrates get their common names from their similar appearance to the five pointed star shape, though not all sea stars have five arms. Some have up to 40!

Scientific Name: Class - Asteroidea
Range: oceans around the world
Size: less than an inch (2.54cm) to nearly three feet (0.91m) in length
Diet: zooplankton, clams, crustaceans, coral, etc.
Lifespan: up to 35 years depending on the species

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