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The first shark-like chondrichthyans appeared in the oceans 400 million years ago, [1] developing into the crown group of sharks by the Early Jurassic. [2] Listed below are extant species of shark. Sharks are spread across 512 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...
The value of shark fins for shark fin soup has led to an increase in shark catches where usually only the fins are taken, while the rest of the shark is discarded, typically into the sea; health concerns about BMAA in the fins now exists regarding consumption of the soup A 4.3-metre (14 ft), 540-kilogram (1,200 lb) tiger shark caught in Kāne ...
Sharks are a secondary threat to the player character in the 1984 Taito game, Sea Fighter Poseidon. Sharks are underwater enemies in a few entries of both the Mario and Donkey Kong franchises. Sharks are occasional enemies in the Ecco the Dolphin series. Finding Nemo, a video game for GameCube, PlayStation 2, Xbox, Game Boy Advance and Windows.
Kinsler says it's this type of marine life education that can help kids understand why sharks exist and be less afraid of them. ... The 20 best stocking stuffers you can get from Walmart under $20 ...
The stunning photo shows blacktip sharks working as a group near the Maldives to hunt a school of fish. In the aerial view, four sharks cut a path through the school of fish, gathering their prey ...
Bait 3D. Bait, a 2012 Australian-Singaporean film, perhaps sets up the most unique of premises in a movie involving people-hungry sharks.The movie follows a bunch of grocery store workers who are ...
The megamouth shark is an extremely rare species of deepwater shark, and the smallest of the three filter-feeding sharks. Since its discovery in 1976, only a few megamouth sharks have been seen, with 55 specimens known to have been caught or sighted as of 2012, including three recordings on film.
The river sharks (of the genus Glyphis) can live in both saltwater and freshwater as well, while one of their members, the Ganges shark (Glyphis gangeticus), lives exclusively in freshwater. Some prehistoric sharks (in a broad sense), including hybodonts and xenacanths, are also thought to have inhabited freshwater environments.