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Post by Pem on Jun 26, 2008 9:54:59 GMT -7
A new fossil has shed light on how the first tetrapods to begin to explore land. Based on the skull and shoulder bone they discovered, it has been suggested that the creature was the size of an adult alligator but had the fins of a fish. The researchers has predicted this adaptation allowed the creature to explore shallow marshes for food. www.abc.net.au/science/articles/2008/06/26/2286684.htm?site=science&topic=latest
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Post by millis on Jun 27, 2008 13:38:29 GMT -7
Wow, thats a pretty big find. Problem is with just one set of bones its very hard to tell if its a true skeleto or just a jumble of bones of animals that died close to one another as a coincidence. Would explain a few things though. Suprises me they expected the development to go along a linear pathway, it always struck me that something like evolution would branch off in many directions before the main line was established, and the side evolutions, if they did keep their head above water to develop further, would add to the diversity of the species we know today.
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