A funky, psychedelic fish that bounces on the ocean floor like a rubber ball has been classified as a new species, a scientific journal reported. The fish — which the University of Washington professor has named "psychedelica" — is a member of the antennariid genus, Histiophryne, and like other frogfish, has fins on both sides of its body that have evolved to be leg-like.
But it has several behavioral traits not previously known to the others. Each time the fish strike the seabed, for instance, they push off with their fins and expel water from tiny gill openings to jet themselves forward. That, and an off-centered tail, causes them to bounce around in a bizarre, chaotic manner.