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  2. List of sharks - Wikipedia

    en.wikipedia.org/wiki/List_of_sharks

    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 556 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...

  3. Shark - Wikipedia

    en.wikipedia.org/wiki/Shark

    The use of sight probably varies with species and water conditions. The shark's field of vision can swap between monocular and stereoscopic at any time. [58] A micro-spectrophotometry study of 17 species of sharks found 10 had only rod photoreceptors and no cone cells in their retinas giving them good night vision while making them colorblind.

  4. Category:Sharks - Wikipedia

    en.wikipedia.org/wiki/Category:Sharks

    Sharks are split into eight orders: Carcharhiniformes: ground sharks, the largest order of sharks, including requiem sharks, catsharks, swellsharks, houndsharks, weasel sharks and hammerheads; Heterodontiformes: bullhead sharks; Hexanchiformes: cow sharks and frilled sharks; Lamniformes: mackerel sharks, including thresher sharks

  5. A third of shark species face extinction. One man is trying ...

    www.aol.com/third-shark-species-face-extinction...

    The International Union for the Conservation of Nature reports 35% of all shark species are threatened with extinction. That number has grown nearly 50% in a decade’s time. That number has grown ...

  6. Shark week: Map shows where biggest species are found in UK ...

    www.aol.com/shark-week-map-shows-where-081855137...

    Below,The Independent has compiled a map showing the largest shark species and where they can be found. Read on for further facts about each species. ... shark is thought to be the world’s ...

  7. Outline of sharks - Wikipedia

    en.wikipedia.org/wiki/Outline_of_sharks

    Bodies of water in which sharks can be found include: Seas: all; Freshwater – some species of shark can live both in seawater and freshwater, and include: Bull shark; River shark; Sandbar shark; Depths: from the surface down to depths of 2,000 metres (6,600 ft). A whale shark in the Georgia Aquarium

  8. The world’s most shark-filled waters - AOL

    www.aol.com/news/world-most-shark-filled-waters...

    Volusia, home to world-famous Daytona Beach, has the dubious honor of being known as the “shark bite capital of the world.” New Smyrna Beach, just south of the city, is an epicenter of shark ...

  9. Lamniformes - Wikipedia

    en.wikipedia.org/wiki/Lamniformes

    The basking shark is the second largest living fish, after the whale shark, and the second of three plankton-eating sharks, the other two being the whale shark and megamouth shark. It is a cosmopolitan migratory species , found in all the world's temperate oceans.