Whiteflies sabotage alarm system of plant in distress
(PhysOrg.com) -- When spider mites attack a bean plant, the plant responds by producing odours which attract predatory mites. These predatory mites then exterminate the spider mite population, thus acting ...
Nov 26, 2009 |
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Variable Temperatures Leave Insects wtih a Frosty Reception
(PhysOrg.com) -- For the first time, scientists at The University of Western Ontario have shown that insects exposed to repeated periods of cold will trade reproduction for immediate survival.
Nov 25, 2009 |
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Opposites attract: Monkeys choose mating partners with different genes
The world's largest species of monkey 'chooses' mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study.
Nov 24, 2009 |
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Many pregnant women avoid HIV screening in Africa
'Prevention is the best cure' is a common expression, but what happens if preventative measures are not used? A large proportion of pregnant Ugandan women are going out of their way not to be HIV tested, increasing the risk ...
Medicine & Health / HIV & AIDS
Nov 19, 2009 |
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Are female mountain goats sexually conflicted over size of mate?
Mountain goats are no exception to the general rule among mammals that larger males sire more and healthier offspring. But University of Alberta researcher David Coltman has found a genetic quirk that might make female mountain ...
Nov 17, 2009 |
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Bacteria expect the unexpected: Scientists observe the emergence of a new adaptation strategy
Organisms ensure the survival of their species by genetically adapting to the environment. If environmental conditions change too rapidly, the extinction of a species may be the consequence. A strategy to ...
Nov 04, 2009 |
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Female choice benefits mothers more than offspring
The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. But why do females choose among males? In a new study published ...
Oct 22, 2009 |
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Chimpanzees help each other on request but not voluntarily
The evolution of altruism has long puzzled researchers and has mainly been explained previously from ultimate perspectives—I will help you now because I expect there to be some long-term benefit to me. However, ...
Oct 14, 2009 |
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Asthmatic children: Did mom use her pump during pregnancy?
Expectant mothers who eschew asthma treatment during pregnancy heighten the risk transmitting the condition to their offspring, according to one of the largest studies of its kind published in the European Respiratory Jo ...
Medicine & Health / Diseases, Conditions, Syndromes
Oct 05, 2009 |
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New research discovers worker bees in 'reproductive class war' with queen
Bee colonies are well known for high levels of cooperation, but new research published in Molecular Ecology demonstrates a conflict for reproduction between worker bees and their Queens, leading some workers to selfishly exploi ...
Sep 09, 2009 |
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Pups from 1st cloned dog to be distributed to public
Puppies born from the world's first cloned dog will be offered to good homes later this year, South Korean researchers said on Thursday.
Sep 03, 2009 |
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Here's One Inheritance You Don't Want
(PhysOrg.com) -- If your mother smoked during her pregnancy, you are more likely to be addicted to nicotine as a young adult.
Aug 05, 2009 |
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Researchers look to imprinted genes for clues to fetal growth restriction in cloned swine
(PhysOrg.com) -- Researchers at North Carolina State University have found that intrauterine growth restriction (IUGR), which results in low birth weight and long-term deleterious health effects in cloned swine, is linked ...
Jul 20, 2009 |
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Researchers develop process for 'surgical' genetic changes
Research led by scientists at Iowa State University's Plant Sciences Institute has resulted in a process that will make genetic changes in plant genes much more efficient, practical and safe.
Jul 20, 2009 |
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Battle of the sexes benefits offspring, says research
Parents compensate for a lazy partner by working harder to bring up their offspring, but not enough to completely make up for the lack of parenting, says research by bird biologists at the University of Bath.
Jul 06, 2009 |
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