sea urchin

950 5000 across algae all animals archaically black blue brown called class close colors common constitute deep dollars dull echinoderm echinoidea echinoids eels feed globular green hedgehogs hunt include inhabit intertidal kin mostly move oceans olive other otters phylum predators purple red round sand sea shades shell slowly small species spiny starfish such test their triggerfish typically urchin urchins wolf rtnz