Green | January 02, 2009 | 15 comments

Seven species that came back from the dead

source: http://www.cosmosmagazine.com/news/2404/8-species-once-though-extince-back-dead

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sunnyspeaks
Extinction is forever. Or is it? So-called 'Lazarus' species – named after the biblical character who rose from the dead – are creatures discovered alive after being declared extinct. Here's a look at some species that aren't quite as dead as we thought they were.
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15 comments // Seven species that came back from the dead

  • Project54Tour
    • 0
      Project54Tour  

    • There are probably species on earth that man is completely unaware of. It's not shocking to find out that animals we thought no longer existed are still alive. What about all of the species we know nothing about? It's something to think about.

    • 3 years ago
  • bluestranger
  • maisry
  • cantspascua
  • cbjones
  • Ogaal
    • 0
      Ogaal  

    • These probaly are NOT the same species of anim als that went extinct mind you, If you ask me these are other animal species that have "Re-evolved" into these extinct species.

      I mean evolution is one messed up deal. I support this with the fact that it's been recorded that the Walking-Stick bugs have over the past century or so have evolved wings, then evolved them away, only to evolve the wings back again, and it has gone on in a cycle like this for quite a while, according to recorded data.

    • 3 years ago
  • SHAWN_RITTIMAN
  • rickm8
    • 0
      rickm8  

    • ohh the polar bear should be on there shouldnt it? with the multiple times it was way hotter than this they couldnt have survived, since thier dying out now..

    • 3 years ago
  • ras_menelik
    • 0
      ras_menelik  
    • rickm8:

      nice try but wrong

      The bear family, Ursidae, is believed to have split off from other carnivorans about 38 million years ago. The Ursinae subfamily originated approximately 4.2 million years ago. According to both fossil and DNA evidence, the polar bear diverged from the brown bear, Ursus arctos, roughly 200,000 years ago. The oldest known polar bear fossil is less than 100,000 years old. Fossils show that between ten to twenty thousand years ago, the polar bear's molar teeth changed significantly from those of the brown bear. Polar bears are thought to have diverged from a population of brown bears that became isolated during a period of glaciation in the Pleistocene.

      More recent genetic studies have shown that some clades of brown bear are more closely related to polar bears than to other brown bears, meaning that the polar bear is not a true species according to some species concepts. In addition, polar bears can breed with brown bears to produce fertile grizzly–polar bear hybrids, indicating that they have only recently diverged and are genetically similar. However, as neither species can survive long in the other's ecological niche, and with distinctly different morphology, metabolism, social and feeding behaviors, and other phenotypic characteristics, the two bears are generally classified as separate species.

      When the polar bear was originally documented, two subspecies were identified: Ursus maritimus maritimus by Constantine J. Phipps in 1774, and Ursus maritimus marinus by Peter Simon Pallas in 1776. This distinction has since been invalidated.

      One fossil subspecies has been identified. Ursus maritimus tyrannus—descended from Ursus arctos—became extinct during the Pleistocene. U.m. tyrannus was significantly larger than the living subspecies.

    • 3 years ago
  • Gargaryun
    • 0
      Gargaryun  

    • I don't think they come back after dying out...They were never REALLY extinct, survivors were tucked away in remote locations & undiscovered until population numbers high enough to cause them to spread out.Which is why I've always kept an open mind about the existence of Sasquatch in remote, basically unexplored regions of the world.
      What's the smartest creature in the world?...The one that's managed to not be found by mankind !!!

    • 3 years ago
  • Chango2000
  • pinkerbelle
    • 0
      pinkerbelle  

    • scary....it's kind of like evolution; some species will die out and then come back because of their relatives or species close to them and environmental changes and such.
      So if humans ever died out, we'd somehow come back...either from evolving from the apes or......something.

    • 3 years ago
  • orionblastar
  • infinitron
  • pjacobs51
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