"The Wartskin Angler, Antennarius maculatus, is a strange looking fish with even stranger habits. To the untrained eye, this fish more closely resembles a rock or sponge than a fish. Colored specimens perfectly match the toxic sponges in their habitat, while green and brown specimens blend in to the substrate. Instead of swimming, this fish uses foot-like pelvic and pectoral fins to “walk” around slowly on the substrate. When alarmed, an angler can make a (relatively) speedy getaway by pumping large amounts of water into its siphon-like gills, propelling it through the water while using its tail for a rudder..."
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