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American eel. The American eel (Anguilla rostrata) is a facultative catadromous fish found on the eastern coast of North America. Freshwater eels are fish belonging to the elopomorph superorder, a group of phylogenetically ancient teleosts. [2] The American eel has a slender, supple, snake-like body that is covered with a mucus layer, which ...
Lutra canadensis. The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways . An adult North American river otter can weigh between 5. ...
The International Game Fish Association (IGFA) all-tackle world record chain pickerel is a 4.25 kg (9.4 lb) fish, caught in Homerville, Georgia on February 17, 1961 by angler Baxley McQuaig, Jr., while the IGFA all-tackle length world record is 65 centimetres (26 in) long, caught in Henderson Harbor, Lake Ontario, New York on November 4, 2019 ...
The American paddlefish (Polyodon spathula), also known as a Mississippi paddlefish, spoon-billed cat, or spoonbill, is a species of ray-finned fish. It is the last living species of paddlefish (Polyodontidae). This family is most closely related to the sturgeons; together they make up the order Acipenseriformes, which are one of the most ...
American mink. The American mink (Neogale vison) is a semiaquatic species of mustelid native to North America, though human introduction has expanded its range to many parts of Europe, Asia, and South America. Because of range expansion, the American mink is classed as a least-concern species by the IUCN. [1]
The walleye (Sander vitreus, synonym Stizostedion vitreum), also called the walleyed pike, [3] yellow pike, yellow pikeperch or yellow pickerel, [4] is a freshwater perciform fish native to most of Canada and to the Northern United States. It is a North American close relative of the European zander, also known as the pikeperch.
Shark biting into the fish head teaser bait next to a cage in False Bay, South Africa. To more successfully hunt fast and agile prey such as sea lions, the great white has adapted to maintain a body temperature warmer than the surrounding water. One of these adaptations is a "rete mirabile" (Latin for "wonderful net"). This close web-like ...
The bluegill sunfish relies heavily on the flexibility of its fins to maintain maneuverability in response to fluid forces. The bluegill's segmentation in its pectoral fin rays mitigates the effects of fluid forces on the fish's movement. [19] The bluegill has a variety of unusual adaptations that allow it to navigate different environments.