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Fossils document clash of continents

msnbc.msn.com — A recently discovered fossilized jaw of a carnivore is seen at the Smithsonian Research Institute in Panama City. Engineers digging to widen the Panama Canal have uncovered more than 500 fossils, including the teeth and bones of rodents, horses, crocodiles and turtles that lived before a land bridge linked North and South America.

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  • yellowcakewalk, on 07/18/2008, -0/+4A fascinating topic! Think about it the next time you see that armadillo or opossum squashed on the side of the road. They are immigrants from South America.

    Wikipedia sez:
    "For instance, in North America today, the opossum, armadillo, and porcupine all trace back to ancestors that came across the land bridge from South America. Likewise, ancestors of bears, cats, dogs, horses, llamas, and raccoons all made the trek south across the isthmus."
  • razorsharpwit, on 07/18/2008, -0/+1coool.
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