This has been reposted from our lab tumblelog

rhamphotheca:

Bowfin (Amia calva)

… is the last surviving member of the order Amiiformes (which includes 3 additional, now-extinct families dating from the Jurassic, to the Eocene), and of the family Amiidae (which contains numerous species in about four subfamilies, only one of which, Amiinae, is still extant). hey can grow up to 109 centimetres (43 in) in length, and weigh 9.75 kilograms (21.5 lb)

The Bowfin is a freshwater piscivore, preying on fish and larger aquatic invertebrates by ambush or stalking. A voracious and opportunist feeder, it subsists on fishes including other sport fishes, frogs, crayfish, insects, and shrimps. Native to southeastern Canada and eastern United States, they prefer shallow, weedy waters of lakes or protected back waters of rivers.

Bowfin are able to breathe air, using their swim bladder as a primitive lung and can be seen coming to the surface and gulping air even in well oxygenated water. This air-breathing ability allows them to utilize shoreline habitats that are not accessible to other predator fish…

(read more: Wikipedia)        

(images: T – Duane Raver, USFWS; B – Stan Shebs)

via the Lab Tumblr: http://genefish.tumblr.com/post/27992175392

rhamphotheca: Bowfin (Amia calva) … is the last surviving…