(Phys.org)—In 2003, a mysterious and surprising dinosaur was discovered that possessed not only wings on its arms but also long feathers on each leg forming a "hind wing." This was a completely new and unexpected body plan ...
Archaeology
Oct 23, 2012
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The sign in front of the tall display case at the Smithsonian Institution's Museum of Natural History lures visitors to "meet one of your oldest relatives." Inside stands a morganucodon, a mouse-like animal from the Late ...
Other
Oct 12, 2012
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Animals consist of many distinct cell types, all of which originate during development from a single cell: the fertilized egg. To generate this vast cellular diversity, the egg and its descendants must divide unevenly to ...
Cell & Microbiology
May 18, 2012
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(Phys.org) -- With more than 60,000 descendants in six generations, Pawnee Farm Arlinda Chief and his son Walkway Chief Mark cast a long genetic shadow. New research on the genomes of the two bulls show how portions of their ...
Biotechnology
Apr 25, 2012
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The two-and-a-half-year TARA OCEANS expedition finishes on 31 March when the ship and crew reach Lorient, France. The arrival completes a journey of 60 000 miles across all the world's major oceans to sample and investigate ...
Environment
Mar 27, 2012
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Alpine marmots (Marmota marmota) live in extended family groups of up to 20 individuals. The groups consist of a dominant territorial pair and a number of subordinate individuals, typically descendants of the dominant pair. ...
Plants & Animals
Dec 6, 2011
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Jeanne Romero-Severson, associate professor of biological sciences at the University of Notre Dame, and her collaborators, are tracking the evolution of the live oaks of eastern North America, seeking to understand how the ...
Environment
Jul 24, 2012
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