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Shark anatomy differs from that of bony fish in a variety of ways. Variation observed within shark anatomy is a potential result of ... Within the shark stomach, ...
Carcharodon albimorsWhitley, 1939. The great white shark (Carcharodon carcharias), also known as the white shark, white pointer, or simply great white, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. It is the only known surviving species of its genus Carcharodon.
Digestion can take a long time. The food moves from the mouth to a J-shaped stomach, where it is stored and initial digestion occurs. [51] Unwanted items may never get past the stomach, and instead the shark either vomits or turns its stomachs inside out and ejects unwanted items from its mouth. [52]
The spiral valve of a nurse shark (Ginglymostoma cirratum). A spiral valve or scroll valve is the corkscrew-shaped lower portion of the intestine of some sharks, Acipenseriformes (sturgeon and paddlefish), rays, skates, bichirs, Lepisosteiformes (gars), and lungfishes. A modification of the ileum, the spiral valve is internally twisted or ...
Basking shark. The basking shark (Cetorhinus maximus) is the second-largest living shark and fish, [4] after the whale shark. It is one of three plankton-eating shark species, along with the whale shark and megamouth shark. Typically, basking sharks reach 7.9 m (26 ft) in length.
Contents. Fish physiology. When threatened, the toxic pufferfish fills its extremely elastic stomach with water. [ 1 ] Fish physiology is the scientific study of how the component parts of fish function together in the living fish. [ 2 ] It can be contrasted with fish anatomy, which is the study of the form or morphology of fishes.
This isn't the first case of "shark cannibalism," said Jon Dodd, executive director of the Atlantic Shark Institute, which helped lead the study. Larger sharks eating smaller sharks is a common ...
Hammerhead shark. The hammer-like shape of the head means that hammerhead sharks can sweep for prey more effectively. The hammerhead sharks are a group of sharks that form the family Sphyrnidae, named for the unusual and distinctive form of their heads, which are flattened and laterally extended into a cephalofoil (a T-shape or "hammer").