Worlds of David Darling
Encyclopedia of Science
Home > Encyclopedia of Science


The largest group of living fish, found in both the oceans and in freshwater habitats. Teleosts are characterized by a fully movable maxilla and premaxilla (which form the biting surface of the upper jaw); the movable upper jaw makes it possible for teleosts to protrude their jaws when opening the mouth. Teleosts are also distinguished by having symmetrical tails.

Related category