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  2. List of megamouth shark specimens and sightings - Wikipedia

    en.wikipedia.org/wiki/List_of_megamouth_shark...

    Found being entrapped in a set net in early morning, and on 15th, an aquarium at Osaka tried to purchase the individual alive and make it the first exhibition of live animal in the world, but the shark was found missing in 6am, likely to surpass the net rather than breaking through it. 54: 12 June 2011

  3. Fossil of an ancient shark that swam in the age of dinosaurs ...

    www.aol.com/fossil-ancient-shark-swam-age...

    The discovery also provides insight into the evolutionary history of sharks found in our oceans today, experts say. ... rounded protuberances or pointed cusps on the top surface. All these were ...

  4. Shark - Wikipedia

    en.wikipedia.org/wiki/Shark

    Sharks are found in all seas. They generally do not live in fresh water, with a few exceptions such as the bull shark and the river shark which can swim both in seawater and freshwater. [99] Sharks are common down to depths of 2,000 metres (7,000 ft), and some live even deeper, but they are almost entirely absent below 3,000 metres (10,000 ft).

  5. 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 512 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...

  6. 70 Shark Facts That Will Make You Say "Oh, These Guys ... - AOL

    www.aol.com/news/70-shark-facts-oh-guys...

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  7. Megachasma - Wikipedia

    en.wikipedia.org/wiki/Megachasma

    Megachasma is a genus of mackerel sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. [1] Megachasma is known from a single living species, Megachasma pelagios. [2 ...

  8. Great white sighting may reveal a ‘holy grail’ of shark science

    www.aol.com/researchers-report-first-sighting...

    “Where white sharks give birth is one of the holy grails of shark science. No one has ever been able to pinpoint where they are born, nor has anyone seen a newborn baby shark alive,” Gauna ...

  9. Ptychodus - Wikipedia

    en.wikipedia.org/wiki/Ptychodus

    Ptychodus (from Greek: πτυχή ptyche 'fold' and Greek: ὀδούς odoús 'tooth') [1] is a genus of extinct large durophagous (shell-crushing) lamniform sharks from the Cretaceous period, spanning from the Albian to the Campanian. [2] Fossils of Ptychodus teeth are found in many Late Cretaceous marine sediments worldwide. [3]