Brittle Stars are related to Starfish, Sand Dollars, and Sea Urchins. Brittle Stars have the capability to re-grow lost limbs, as with a lot of other Echinoderms.
If split in half, they can also recover and both halves become an identical Brittle Star! One Brittle Star can suddenly become a colony of Brittle Stars.
Brittle Stars come in great colonies and are preyed on by giant Sunflower Starfish, which are about the size of a dustbin lid. And the Sunflower Starfish, in turn, is preyed on by the enormous King Crab.
Brittle Stars are so called because they’re extremely prickly. Their legs are covered in prickles that break off if attacked, but their body is relatively smooth. Brittle Stars come in quite a few colours, including, brown, yellow, red, and white. Brittle Stars are very primitive creatures, but are a little more advanced than Cnidarians.
Brittle Stars eat mostly seaweed and other organic matter that they can find. In fact, some of their relatives like Sea Urchins, can actually crop huge areas of kelp.