News tagged with evolutionary history
Related topics: evolutionary biology , proceedings of the national academy of sciences , fossil , species , fossil record
Bugs without borders: Researchers track the emergence and global spread of healthcare associated Clostridium difficile
Researchers show that the global epidemic of Clostridium difficile 027/NAP1/BI in the early to mid-2000s was caused by the spread of two different but highly related strains of the bacterium rather than one as was previo ...
Genetics
Dec 09, 2012 |
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Deadly virus discovered in bats also jumps species
(Medical Xpress)—Four new forms of hantavirus, one of the most virulent pathogens transmitted from animals to humans, have been identified by international research contributed to by the University of Sydney.
Diseases, Conditions, Syndromes
Feb 08, 2013 |
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A history lesson from genes: Using DNA to tell us how populations change
When Charles Darwin first sketched how species evolved by natural selection, he drew what looked like a tree. The diagram started at a central point with a common ancestor, then the lines spread apart as ...
Genetics
Jan 09, 2013 |
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Scientists discover origins of a bacterial strain that causes severe clostridium difficile infection
(Medical Xpress)—Scientists at the University of Liverpool have identified the origin of an epidemic strain of Clostridium difficile (027) and its mode of spread using tagging genetic signatures in the ...
Genetics
Dec 21, 2012 |
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'Smart' genes put us at risk of mental illness
(Medical Xpress)—Humans may be endowed with the ability to perform complex forms of learning, attention and function but the evolutionary process that led to this has put us at risk of mental illness.
Neuroscience
Dec 05, 2012 |
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Common antifungal drug decreases tumor growth and shows promise as cancer therapy
An inexpensive antifungal drug, thiabendazole, slows tumor growth and shows promise as a chemotherapy for cancer. Scientists in the College of Natural Sciences at The University of Texas at Austin made this ...
Cancer
Aug 21, 2012 |
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It's evolution: Nature of prejudice, aggression different for men and women
Prejudice is linked to aggression for men and fear for women, suggests new research led by Michigan State University scholars.
Psychology & Psychiatry
Jan 24, 2012 |
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Bitter taste perception is not just about flavors, geneticists show
Long the bane of picky eaters everywhere, broccoli's taste is not just a matter of having a cultured palate; some people can easily taste a bitter compound in the vegetable that others have difficulty detecting. Now a team ...
Genetics
Dec 06, 2011 |
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Researchers discover origin of the Black Death
(Medical Xpress) -- The bacteria responsible for causing the 1348 Black Death, identified as one of the most cataclysmic events in human history, has been identified by a McMaster researcher.
Diseases, Conditions, Syndromes
Aug 30, 2011 |
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Wired for sound: A small fish's brain illustrates how people and other vertebrates produce sounds
(PhysOrg.com) -- Cornell researchers have identified regions of a fish brain that reveal the basic circuitry for how all vertebrates, including humans, generate sound used for social communication.
Neuroscience
Jun 14, 2011 |
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Deciding to stay or go is a deep-seated brain function
Birds do it. Bees do it. Even little kids picking strawberries do it.
Neuroscience
Jun 06, 2011 |
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Study finds analysis of many species required to better understand the brain
To get a clear picture of how humans and other mammals form memories and find their way through their surroundings, neuroscientists must pay more attention to a broad range of animals rather than focus on ...
Neuroscience
Apr 29, 2013 |
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