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  • Why are sharks threatened? - Save Our Seas Foundation
    When waters get too hot for a shark species, the sharks can often just move somewhere else Ocean acidification, sometimes called climate change’s ‘evil twin’, can cause birth defects and difficulties with the sense of smell in some shark species, but compared to the existential threat posed by overfishing this is generally not considered
  • Meet 8 of the World’s Longest-Living Animals and Other Species
    And while there is some dispute on this age, many scientists agree that the sharks are at least centenarians Oldest Living Greenland Shark Through radiocarbon dating analysis of eye tissue samples from 28 Greenland sharks, scientists established that the oldest shark in the study had an estimated age between 272 and 512 years
  • How does overfishing affect sharks and rays? - Save Our Seas . . .
    While we may associate fishing with bony fish like salmon and cod, there are shark and ray (elasmobranchs) fisheries around the world These species are directly targeted for numerous reasons Sharks’ meat is an increasingly popular source of protein that is sold in the USA, Europe, Japan and Australia
  • Fossil Shark Basics – Discover Fishes - Florida Museum
    Sharks are sometimes referred to as "living fossils" Ancient sharks lived in the oceans long before animals colonized the land Their history goes back to at least 400 million years ago, making the 2 million year history of humans seem quite insignificant by comparison Most fossil evidence of ear
  • Study Shows Alarming Decline In Shark Numbers Around The World
    “The study globally assessed sharks at coral reefs, which included 59 different species in the Atlantic, Pacific and Indian Oceans,” Matich said “These ranged from Caribbean reef sharks and bull sharks to hammerheads, tiger sharks and many other species, including those not tied to coral reefs
  • Research shows oceanic shark populations have dropped 71% . . .
    Globally, the abundance of oceanic sharks and rays dropped more than 70 per cent between 1970 and 2018, according to a study published Wednesday in the journal Nature Of the 31 species of sharks
  • Worlds shark tooth capital teemed with even more extinct . . .
    Many mackerel shark species, which had long, thin teeth suited to catching fast-moving prey, became extinct during this time, likely because the climate cooled, researchers reported in 2019 in the





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