Brandon Cole / Red Sea Urchins (Stronglyocentrotus franciscanus) and Purple Sea Urchins (Stronglyocentrotus purpuratus) feeding on bottom algae and Giant kelp (Macrocystis pyrifera), Channel Islands National Marine...

Brandon Cole / Red Sea Urchins (Strongylocentrotus franciscanus) and sea weed. British Columbia, Canada, Pacific Ocean, September.

Floris van Breugel / Giant Red Sea Urchins (Strongylocentrotus franciscanus) Purple sea urchins (Strongylocentrotus purpuratus) and Sea Anenomes (Anthopleura) underwater, in tide pools along Californian coastline, USA.

David Hall / Puget sound king crab (Lopholithodes mandtii) and Red sea urchins (Strongylocentrotus franciscanus), Deserter Group, Queen Charlotte Strait, British Columbia, Canada. September.

David Hall / Marine invertebrates including Crimson anemones (Cribrinopsis fernaldi), Painted anemones (Urticina crassicornis), Red soft coral (Gersemia rubriformis), Red sea urchins (Strongylocentrotus franciscan...

Franco Banfi / Giant red sea urchin (Strongylocentrotus franciscanus) Vancouver Island, British Columbia, Canada, Pacific Ocean

Pascal Kobeh / Colony of Red sea urchins (Strongylocentrotus franciscanus) at the feet of Bull kelps (Nereocystis luetkeana) Vancouver Island, British Columbia, Canada. Pacific Ocean.

Pascal Kobeh / Underwater reef covered with a colony of Red sea urchins (Strongylocentrotus franciscanus), Alaska, USA, Gulf of Alaska. Pacific ocean.

Brandon Cole / Red gorgonian coral (Lophogorgia chilensis), Giant sea star (Pisaster giganteus), purple sea urchins (Stronglyocentrotus purpuratus) and Spiny brittle stars (Ophiothrix spiculata) on a coral reef, Cha...

Brandon Cole / Ochre Sea Stars (Pisaster ochraceus), Red Sea Urchins (Stronglyocentrotus franciscanus), and Plumose Sea Anemones (Metridium senile) on a rock in the seas of British Columbia, Canada

Jeff Rotman / Spines and tubed feet of Red sea urchin {Strongylo- centrotus franciscanus} CA, USA

Brandon Cole / Giant red sea urchins {Strongylocentrotus franciscanus} and purple sea urchins {S purpuratus} feeding on drift kelp, Vancouver Island, British Columbia, Canada, North America NOT FOR SALE IN USA

Brandon Cole / Close up of Giant red sea urchin {Strongylocentrotus franciscanus} San Juan Island, Washington, North America. NOT FOR SALE IN USA

David Fleetham / Giant / Commerson's frogfish (Antennarius commerson), juvenile, on Red slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii.

David Fleetham / Commerson's / Giant frogfish (Antennarius commerson), on Red slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii.

David Fleetham / Commerson's / Giant frogfish (Antennarius commerson), juvenile, perched on a Red slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii.

Richard Herrmann / Red Sea Urchin (Strongylocentrotus franciscanus) group feeding on Giant Kelp (Macrocystis pyrifera) creating urchin barren, Santa Cruz Island, Channel Islands, California