New technique fills gaps in fossil record
University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.
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
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The majority of orchids are found in habitats where light may be a limiting factor. In such habitats it is not surprising that many achlorophyllous (lacking chlorophyll), as well as green, orchids depend on specific mycorrhizal ...
Plants & Animals
Jul 12, 2011
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(PhysOrg.com) -- Contrary to what most people may think, the speciation rates of plants are not linked to the first development of a novel physical trait or mechanism. New international research shows that plants fiddle around ...
Evolution
May 13, 2011
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The movie Jurassic Park got one thing right: Those velociraptors hunted by night while the big plant-eaters browsed around the clock, according to a new study of the eyes of fossil animals. The study will be published online ...
Archaeology
Apr 14, 2011
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Just as a company creates new, better versions of a product to increase market share and pad its bottom line, an international team of researchers led by Brown University has found that plants tinker with their design and ...
Plants & Animals
Mar 29, 2011
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(PhysOrg.com) -- UConn researchers have shown that genetic similarity may come from preferential gene sharing rather than shared ancestry.
Cell & Microbiology
May 18, 2010
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