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In a milestone decision in 2013, CITES prohibited international trade in the fins of the scalloped hammerhead (pictured) and four other shark species. [5] Shark species are increasingly becoming threatened because of commercial and recreational fishing pressures, the impact of non-shark fisheries on the seabed and shark prey species, and other ...
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 ...
Shark attacks may also occur due to territorial reasons or as dominance over another shark species. [58] Sharks are equipped with sensory organs called the Ampullae of Lorenzini that detect the electricity generated by muscle movement. [59] The shark's electrical receptors, which pick up movement, detect signals like those emitted from wounded ...
The new species of ghost shark has a beak-like mouth and a whip-like tail (National Institute Of Water and) "Ghost sharks like this one are largely confined to the ocean floor, living in depths of ...
Recent shark bites in Florida and Hawaii and a suspected case in New Jersey have piqued interest in an age-old summer question for beachgoers — is it safe to go in the water? It's a good idea to ...
The newly discovered species of ghost shark, known as a spookfish. It may be early to get the Halloween decorations out for most, but in the deep waters of the Pacific Ocean spooky season is well ...
A shark bite was found on the right side of his body. [62] Gerbacio Solano, 40: December 3, 1952: Tiger Shark: Solano was killed by an extremely large shark described by witnesses as being in excess of 22 feet (6.7 m) while swimming from his fishing boat, setting nets, at Maile Beach, Oahu, Hawaii. [62] Arthur Barry Lyle Wilson, 17: December 7 ...
The false catshark or sofa shark (Pseudotriakis microdon) is a species of ground shark in the family Pseudotriakidae, and the sole member of its genus.It has a worldwide distribution, and has most commonly been recorded close to the bottom over continental and insular slopes, at depths of 500–1,400 m (1,600–4,600 ft).