Brittle stars massing by the hundreds in possible reproduction event at Tagus Cove, Isabela Island, Galapagos Islands, Ecuador, South America

Purple sea urchins and brittle stars (Strongylocentrotus purpatus ). USA, Channel Islands, CA

Sea rod and brittle stars (Plexaurella nutans) and (Ophiothrix suensonii), Cayman Islands, Caribbean.

Brittlestar. Red Sea.