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The nurse shark genus Ginglymostoma is derived from Greek language meaning hinged mouth, whereas the species cirratum is derived from Latin meaning having curled ringlets. . Based on morphological similarities, Ginglymostoma is believed to be the sister genus of Nebrius, with both being placed in a clade that also include species Pseudoginglymostoma brevicaudatum, Rhincodon typus, and ...
The whale shark, the world's largest fish, is classified as Endangered. Binding legislation and harvest management strategies... are urgently needed to address the disproportionate impact of fisheries on cartilaginous fishes. – IUCN global study 2010 Threatened sharks are those vulnerable to endangerment (extinction) in the near future. The International Union for Conservation of Nature ...
The grey nurse shark is one of the most critically endangered shark species and believed to be the first protected shark in the world. It was declared 'vulnerable' in the waters of New South Wales (Australia) in 1984 and later throughout the world. In 1996 the species was listed globally 'vulnerable' by the International Union for Conservation ...
The sand tiger shark (Carcharias taurus), grey/gray nurse shark, spotted ragged-tooth shark or blue-nurse sand tiger, is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf , from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft ...
A sawfish, a type of ray related to sharks, is immediately recognizable by its snout, also called a rostrum or saw. Often dubbed "prehistoric," scientists studying fossils say sawfish evolved from ...
Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild. The smalltooth sand tiger has been assessed as a vulnerable species. Sand sharks, also known as sand tiger sharks, gray nurse sharks or ragged tooth sharks, are mackerel sharks of the family Odontaspididae. They are found worldwide in temperate and ...
The largest species, called simply the nurse shark Ginglymostoma cirratum, may reach a length of 4.3 m (14 ft); the tawny nurse shark Nebrius ferrugineus is somewhat smaller at 3.2 m (10 ft), and the short-tail nurse shark Pseudoginglymostoma brevicaudatum is by far the smallest at just 75 cm (2.46 ft) in length.
Pacific nurse shark. Ginglymostoma unami, also known as the Pacific nurse shark is a nurse shark of the family Ginglymostomatidae. It is found in southeastern coast of Baja California, Mexico to Costa Rica including Gulf of California. It is 2.8 meters long. This species differs from Ginglymostoma cirratum between posterior end of the second ...