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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.
Chimaeras are soft-bodied, shark-like fish with bulky heads and long, tapered tails; measured from the tail, they can grow up to 150 cm (4.9 ft) in length. Like other members of the class Chondrichthyes, chimaera skeletons are entirely cartilaginous, or composed of cartilage. Their skin is smooth and relatively free of scales or unique features ...
Great white shark. 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.
The Columbus Zoo and Aquarium is a non-profit zoo located near Powell in Liberty Township, Delaware County, Ohio, United States, north of the city of Columbus. The land lies along the eastern banks of the O'Shaughnessy Reservoir on the Scioto River, at the intersection of Riverside Drive and Powell Road. It has a worldwide reputation, largely ...
On the other hand, waiting a bit longer to take Social Security can have a big impact. If you're entitled to the average retirement benefit of $1,316 at age 62, waiting until you turn 63 would ...
Megalodon teeth can measure over 180 millimeters (7.1 in) in slant height (diagonal length) and are the largest of any known shark species,[29]: 33 implying it was the largest of all macropredatory sharks.[35] In 1989, a nearly complete set of megalodon teeth was discovered in Saitama, Japan.
Detroit Tigers pitcher Kenta Maeda should be on schedule to make his next start despite being hit by a liner during during the sixth inning of Friday’s game against the Los Angeles Angels.
The Greenland shark ( Somniosus microcephalus ), also known as the gurry shark or grey shark, is a large shark of the family Somniosidae ("sleeper sharks"), closely related to the Pacific and southern sleeper sharks. [ 2] Inhabiting the North Atlantic and Arctic Oceans, they are notable for their exceptional longevity, although they are poorly ...