Evolutionary divergence of humans from chimpanzees likely occurred some 8 million years ago rather than the 5 million year estimate widely accepted by scientists, a new statistical model suggests.
Archaeology
Nov 5, 2010
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The meters-long, carnivorous "shrimp" from hell that once ruled the seas of Earth a half billion years ago may have been a real softy, it turns out. A new 3-D modeling of the mouth parts of the Anomalocaris, along with evidence ...
Archaeology
Nov 1, 2010
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University of Florida researchers presenting new fossil evidence of an exceptionally well-preserved 55-million-year-old North American mammal have found it shares a common ancestor with rodents and primates, including humans.
Archaeology
Oct 11, 2010
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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) -- The evolution of kangaroos is intricately tied to Australia's changing climate, according to new research.
Plants & Animals
Aug 4, 2010
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Two genes controlling a tissue protein may have played a role in the key period when fish shed their fins and became limbed land-lovers, a study published by Nature on Thursday said.
Biotechnology
Jun 24, 2010
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A shade more than 200 million years ago, the Earth looked far different than it does today. Most land on the planet was consolidated into one continent called Pangea. There was no Atlantic Ocean, and the rulers of the animal ...
Earth Sciences
Mar 22, 2010
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It might sound like a mashup of monster movies, but palaeontologists have discovered evidence of how an extinct shark attacked its prey, reconstructing a killing that took place 4 million years ago.
Archaeology
Mar 16, 2010
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(PhysOrg.com) -- Giant plankton-eating fish filled the prehistoric seas for more than 100 million years before they were wiped out in the same event that killed off the dinosaurs, new fossil evidence claims.
Archaeology
Feb 18, 2010
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1
Scientists have long puzzled over how iguanas, a group of lizards mostly found in the Americas, came to inhabit the isolated Pacific islands of Fiji and Tonga. For years, the leading explanation has been that progenitors ...
Plants & Animals
Jan 11, 2010
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