Giant Frogfish (Antennarius commersoni) by Samantha Craven
The unusual appearance of the frogfish is designed to conceal it from predators and sometimes to mimic a potential meal to its prey. For the scaleless and unprotected frogfish, the camouflage is an important defense against predators. Some frogfish can also inflate themselves, like pufferfish, by sucking in water in a threat display.
Frogfish generally do not move very much, preferring to lie on the sea floor and wait for prey to approach. Once the prey is spotted, they can approach slowly using their pectoral and pelvic fins to walk along the floor.