(PhysOrg.com) -- Lena Hileman sought to discover how related plants could have developed vastly different flowers and pollination strategies.
Plants & Animals
Feb 16, 2011
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(PhysOrg.com) -- Feral pigs introduced to the Galapagos Archipelago shortly after Charles Darwin’s historical visit have damaged the ecosystem of Santiago Island, causing, it is believed, the extinction or imperilment ...
Ecology
Feb 1, 2011
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(PhysOrg.com) -- A major driving force of evolution comes from mistakes made by cells and how organisms cope with the consequences, University of Arizona biologists have found. Their discoveries offer lessons for creating ...
Evolution
Jan 24, 2011
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Tomato plants use similar biochemical mechanisms to reject pollen from their own flowers as well as pollen from foreign but related plant species, thus guarding against both inbreeding and cross-species hybridization, report ...
Plants & Animals
Dec 23, 2010
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(PhysOrg.com) -- Global warming devastated tropical rainforests 300 million years ago. Now scientists report the unexpected discovery that this event triggered an evolutionary burst among reptiles -- and inadvertently paved ...
Earth Sciences
Nov 29, 2010
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Beginning around 542 million years ago, a profusion of animals with shells and skeletons began to appear in the fossil record. So many life forms appeared during this time that it is often referred to as the "Cambrian Explosion."
Earth Sciences
Nov 10, 2010
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Although the magnificent frigatebird may be the least likely animal on the Galapagos Islands to be unique to the area, it turns out the Galapagos population of this tropical seabird may be its own genetically distinct species ...
Plants & Animals
Sep 28, 2010
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What determines plant diversity in a forest? It's a question even Charles Darwin wanted to unravel. But most research into forest diversity demonstrates only patterns of species survival and abundance rather than the reason ...
Ecology
Jun 25, 2010
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(PhysOrg.com) -- Researchers at The George Washington University recently uncovered the identity of a spider that was originally found by Charles Darwin in Brazil more than a century and a half ago. Using notes taken by Darwin ...
Plants & Animals
Jun 4, 2010
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Researchers have found that a 150 million year old "dinobird" fossil, long thought to contain nothing but fossilized bone and rock, has been hiding remnants of the animal's original chemistry. Using the bright X-ray beam ...
Archaeology
May 10, 2010
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