Air-breathing
Guest post: Gretchen Stokes, University of Florida Air-breathing fishes are those that respire using aerial gas exchange instead of, or in addition to, that of the water. Air-breathing is an ancient vertebrate specialization that evolved from aquatic hypoxia (e.g., areas of seasonally flooded wetlands, under ice). Air-breathing fishes are equipped with one or more modified respiratory … [Read more…]