During the fall, hundreds of millions of monarch butterflies living in eastern North America fly up to 1,500 miles to the volcanic forests of Mexico to spend the winter, while monarchs west of the Rocky Mountains fly to the ...
Plants & Animals
May 31, 2012
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Seed size is controlled by small RNA molecules inherited from a plant's mother, a discovery from scientists at The University of Texas at Austin that has implications for agriculture and understanding plant evolution.
Biotechnology
Apr 11, 2012
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An international team of researchers headed by ETH-Zurich scientists has demonstrated for the first time how to extract testable hypotheses from a vast amount of different measurement data for cells that are about to change. ...
Cell & Microbiology
Mar 27, 2012
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There are 16,000 types of parasitic roundworms causing illnesses in humans and animals. Controlling their effects on health becomes more difficult as the medicines used to treat them become less effective. A University of ...
Cell & Microbiology
Feb 3, 2012
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A University of Rhode Island biologist who released lizards on tiny uninhabited islands in the Bahamas has shed light on the interaction between evolutionary processes that are seldom observed.
Plants & Animals
Feb 2, 2012
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Escherichia coli bacteria thrive in the lower intestine of humans and other animals, including birds. Most are vital constituents of the healthy gut flora, but certain forms of E. coli cause a range of diseases in both humans ...
Cell & Microbiology
Jan 30, 2012
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Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. ...
Cell & Microbiology
Jan 29, 2012
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(PhysOrg.com) -- For the first time, a new computational method allows researchers to identify which specific molecular mechanisms are altered by genetic mutations in proteins that lead to disease. And they can apply this ...
Biotechnology
Jan 19, 2012
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Reproductive and somatic aging use different molecular mechanisms that show little overlap between the types of genes required to keep oocytes healthy and the genes that generally extend life span, according to Coleen Murphy, ...
Cell & Microbiology
Dec 6, 2011
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Each fall millions of monarch butterflies from across the eastern United States use a time-compensated sun compass to direct their navigation south, traveling up to 2,000 miles to an overwintering site in a specific grove ...
Biotechnology
Nov 23, 2011
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