When the ancestors of living cetaceans—whales, dolphins and porpoises—first dipped their toes into water, a series of evolutionary changes were sparked that ultimately nestled these swimming mammals into the larger hoofed ...
Evolution
Sep 24, 2009
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Every year, diarrhea causes around five million fatalities worldwide. Most people die due to pathogenic microorganisms, such as bacteria or viruses, which were ingested into the gastro-intestinal tract through contaminated ...
Cell & Microbiology
Jun 30, 2009
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Genes trump environment as the primary reason that some adolescents are more likely than others to be victimized by crime, according to groundbreaking research led by distinguished criminologist Kevin M. Beaver of The Florida ...
Social Sciences
May 14, 2009
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