University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.
Evolution
Sep 19, 2011
4
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Smithsonian scientists and colleagues report that snails successfully crossed Central America, long considered an impenetrable barrier to marine organisms, twice in the past million years -- both times probably by flying ...
Plants & Animals
Sep 14, 2011
3
0
Researchers at USC were surprised recently to discover just how much the rising and setting of the sun drives life on Earth – even in unexpected places.
Other
Sep 12, 2011
1
0
(PhysOrg.com) -- Floating rafts of volcanic pumice could have played a significant role in the origins of life on Earth, scientists from Oxford University and the University of Western Australia have suggested.
Earth Sciences
Sep 2, 2011
12
0
A graduate student working in the Judaean desert has discovered a gene that could provide some of the explanation of how water plants colonized dry land.
Biotechnology
Aug 31, 2011
0
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All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?
Cell & Microbiology
Aug 19, 2011
9
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Meteorites hold a record of the chemicals that existed in the early Solar System and that may have been a crucial source of the organic compounds that gave rise to life on Earth. Since the 1960s, scientists have been trying ...
Space Exploration
Aug 8, 2011
3
2
Any sulfurous molecules that astronomers spot on alien worlds might be a way to reveal whether or not those distant planets host life, researchers suggest.
Astronomy
Jun 30, 2011
17
0
Lobsters without shells and a small shark that bulks up with water to scare off predators are among hundreds of potential new species found in the Philippines, according to a US-led biodiversity survey.
Plants & Animals
Jun 30, 2011
0
0
(PhysOrg.com) -- A team of scientists led by Montana State University has discovered the "when" of a major event that led to the evolution of complex life on Earth.
Earth Sciences
Jun 21, 2011
1
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