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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 ...
Many sharks, including the ... In 1991, South Africa was the first country in the world to declare Great White sharks a legally protected species [170] (however, ...
For decades, many ichthyological works, as well as the Guinness Book of World Records, listed two great white sharks as the largest individuals: In the 1870s, a 10.9 m (36 ft) great white captured in southern Australian waters, near Port Fairy, and an 11.3 m (37 ft) shark trapped in a herring weir in New Brunswick, Canada, in the 1930s. However ...
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 ...
Unconfirmed. This victim fell overboard and was killed by a shark while swimming in Pensacola Bay, Santa Rosa County, Florida. John Bloomquist. September 23, 1911. Unconfirmed, probably a bull shark. Bloomquist was killed by a shark in the Galveston, Texas, ship channel after he jumped overboard to rescue a companion.
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 18.8 m (61.7 ft). [8] The whale shark holds many records for size in the animal kingdom, most notably being by far the most massive living non-cetacean animal.
Greenland sharks have also been found with remains of moose, [22] polar bear, horse, and reindeer (in one case an entire reindeer body) in their stomachs. [10] [23] [24] The Greenland shark is known to be a scavenger and is attracted by the smell of rotting meat in the water. The sharks have frequently been observed gathering around fishing ...
Zebra shark. The zebra shark (Stegostoma tigrinum) is a species of carpet shark and the sole member of the family Stegostomatidae. It is found throughout the tropical Indo-Pacific, frequenting coral reefs and sandy flats to a depth of 62 m (203 ft). Adult zebra sharks are distinctive in appearance, with five longitudinal ridges on a cylindrical ...