How long have viruses been around? No one knows. Scientists at Portland State University have begun taking the first steps toward answering this question.
Earth Sciences
Sep 6, 2010
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(PhysOrg.com) -- With the discovery of an extinct big-toothed sperm whale and possibly the earliest known examples of multicellular life, this week has been a good one for fossil hunters and experts, some of who are meeting ...
Archaeology
Jul 5, 2010
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Research at Virginia Tech has shown that the oldest complex life forms -- living in nutrient-rich oceans more than 540 million years ago - likely fed by osmosis.
Earth Sciences
Aug 19, 2009
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