The Red Sea Urchin is a creature that resembles a ball of spines. They grow to a length of about 15 centimetres, and their spikes can grow to 8 centimetres. They are identifiable by their red color, however they are very similar to purple urchins. Most Red Sea Urchins live to about 30 years, but some live up to 200 years. They often eat kelp, and are commonly eaten by Sea Otters.
The Brittle star is a creature that is closely related to the sea star. They often eat plankton, small crustaceans, and worms. There are about 1500 species of Brittle star and they are around 500 million years old. Brittle stars are able to easily regenerate lost limbs, sometimes using this ability to escape predators.