News tagged with evolutionary changes
Color differences within and between species have common genetic origin
Oct 22, 2009 |
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(PhysOrg.com) -- Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest ...
Team shows how evolution can allow for large developmental leaps
Jul 20, 2009 |
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How evolution acts to bridge the chasm between two discrete physiological states is a question that's long puzzled scientists. Most evolutionary changes, after all, happen in tiny increments: an elephant grows a little larger, ...
New insight into primate eye evolution
May 18, 2009 |
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Researchers comparing the fetal development of the eye of the owl monkey with that of the capuchin monkey have found that only a minor difference in the timing of cell proliferation can explain the multiple anatomical differences ...
Genital stimulation opens door for cryptic female choice in tsetse flies
May 14, 2009 |
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Manipulation of male and/or female genitalia results in a suite of changes in female reproductive behavior in tsetse flies, carriers of African sleeping sickness.
Modern life's pressures may be hastening human evolution
Apr 13, 2009 |
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We're not finished yet. Even today, scientists say that human beings are continuing to evolve as our genes respond to rapid changes in the world around us. In fact, the pressures of modern life may be speeding up the pace ...
'Undesirable' evolution can be reversed in fish, scientists show
Mar 03, 2009 |
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Intensive harvesting of the largest fish over many decades, while leaving the small fish behind, may have unintentionally genetically reprogrammed many species to grow smaller, said lead author Dr. David O. ...
