(Oct. 5) - The oldest-known tracks of a creature apparently using legs have been discovered in rock dated to 570 million years ago in what was once a shallow sea in Nevada.
Scientists think land beasts evolved from ancient creatures that left the sea and evolved lungs and legs. If the new finding is real the discoverer says it will fuel skepticism it pushes the advent of walking back 30 million years earlier than any previous solid finding. The aquatic creature left its "footprints" as two parallel rows of small dots, each about 2 millimeters in diameter. Scientists said today that the animal must have stepped lightly onto the soft marine sediment, because its legs only pressed shallow pinpoints into that long-ago sea bed. http://news.aol.com/article/oldest-footprints-on-earth-found/200822?icid=100214839x1211170709x1200675227 In related news, Sarah Palin reacted to this find by suggesting that the fossilized footprints were much more recent, from 1970, and show the first conclusive evidence that Barrack Obama was directly involved in the Pentagon bombing with his pal and fellow terrorist Bill Ayers. Said Palin, "The tiny size of the footprints is because Obama was only eight years old at the time, but even at that early age his Muslim, anti-American, terrorist tendencies were becoming manifest."
