the greasy grouper hunts for prey on a coral reef among black diadema setosum. epinephelus tauvina, brown spotted grouper,

animal black blue color colorful coral dangerous diadema echinoderm egypt environment epinephelus fauna greasy grouper life long longspine mouth ocean poison red reef saltwater sea seafood setosum spine spined spines spiny spotted tauvina tropical underwater uni urchin wildlife