(PhysOrg.com) -- Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly species that evolved when two other species of swallowtails hybridized long ago, a rarity in the animal world, ...
Plants & Animals
Sep 8, 2011
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By altering the genetic makeup of normally "unexcitable" cells, Duke University bioengineers have turned them into cells capable of generating and passing electrical current.
Biotechnology
Jul 19, 2011
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Evolution is usually thought to be a very slow process, something that happens over many generations, thanks to adaptive mutations. But environmental change due to things like climate change, habitat destruction, pollution, ...
Evolution
Jun 22, 2011
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Wolves in the eastern United States are hybrids of gray wolves and coyotes, while the region's coyotes actually are wolf-coyote-dog hybrids, according to a new genetic study that is adding fuel to a longstanding debate over ...
Plants & Animals
May 31, 2011
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Scientists in Switzerland have pieced together the puzzle on the evolution of unselfish behaviour. They simulated genetic evolution over hundreds of generations by using simple robots, providing evidence of kin selection. ...
Robotics
May 23, 2011
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Despite penicillin and the dozens of antibiotics that followed it, streptococcus bacteria have remained a major threat to health throughout the world. The reason: the superb evolutionary skills of this pathogen to rapidly ...
Biotechnology
Jan 28, 2011
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Ohio State University entomologists have conducted the first genetic study of bedbugs, paving the road to the identification of potential genes associated with pesticide resistance and possible new control methods for the ...
Biotechnology
Jan 19, 2011
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Most living plant and animal species have a certain, relatively small, amount of variation in their genetic make-up.
Biotechnology
Nov 23, 2010
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Much as an anthropologist can study populations of people to learn about their physical attributes, their environs and social structures, some marine microbiologists read the genome of microbes to glean information about ...
Cell & Microbiology
Oct 11, 2010
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(PhysOrg.com) -- While scientists have spent the past 40 years describing the intricate series of events that occur when one mammalian cell divides into two, they still haven't agreed on how the process begins.
Cell & Microbiology
Sep 23, 2010
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