MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY
Stonefish (Synanceia verrucosa) camouflaged against rocks on the seabed. The camouflage makes it indistinguishable when it buries itself in sand or hides amongst rocks and reefs to ambush its prey. The stonefish feeds on crustaceans or smaller fish and swallows them whole. It has venomous fins on its back as a form of defence. Photographed off Maratua Island, in the Sulawesi Sea, Indonesia.
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