MAMALILIKULLA TERRITORY IS HOME TO RARE SHALLOW CORALS AND SEA SPONGES, LIKE THIS DRIED CLOUD SPONGE AT THE DISCOVERY PASSAGES AQUARIUM IN CAMPBELL RIVER, B.C. CLOUD SPONGES ARE SENSITIVE TO BEING DESTROYED BY PRAWN TRAPS, AND THEY DISSOLVE AS THEY COME TO THE SURFACE, MAKING IT HARD TO KNOW HOW MANY ARE DAMAGED.