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Team Finds Ancient North American Hunting Tools in Texas Anthropologist leading a team of researchers in Texas says they've found what are believed to be the oldest hunting tools discovered in in North America.
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Tracing the evolutionary origins of fish to shallow ocean waters The first vertebrates on Earth were fish, and scientists believe they first appeared around 480 million years ago. But fossil records from this time are spotty, with only small fragments identified.
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Astronomers zero in on blue-hued asteroid If researchers' enthusiasm is any indication, an asteroid called 3200 Phaethon may be out of this world in more ways than one.
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