News tagged with natural selection

High mortality rates may explain small body size

A new study suggests that high mortality rates in small-bodied people, commonly known as pygmies, may be part of the reason for their small stature. The study, by Jay Stock and Andrea Migliano, both of the University of Cambridge, ...

Oct 05, 2009
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Why Female Water Buffalo Have Horns but Impala Do Not?

(PhysOrg.com) -- The reason some female hoofed animals have horns while others do not has long puzzled evolutionary biologists, even the great Charles Darwin. But now a survey of 117 bovid species led by Ted Stankowich, professor ...

Sep 17, 2009
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Robots Reveal Insights into Evolution

(PhysOrg.com) -- In an ironic twist to our understanding of life, robots may offer a greater degree of realism for studying some of the intricacies of natural selection and evolution than real organisms offer. ...

Sep 16, 2009 feature
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Forgotten evolutionist lives in Darwin's shadow

(AP) -- As he trudges past chest-high ferns and butterflies the size of saucers, George Beccaloni scours a jungle hilltop overlooking the South China Sea for signs of a long-forgotten Victorian-era scientist.

Jun 28, 2009
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Researchers to reveal aging's origins on global stage

Four of the biologists who described the underlying causes of aging will soon share their findings with an international audience during a symposium at the upcoming World Congress of Gerontology and Geriatrics, taking place ...

Jun 23, 2009
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Geography and history shape genetic differences in humans

New research indicates that natural selection may shape the human genome much more slowly than previously thought. Other factors -- the movements of humans within and among continents, the expansions and contractions of populations, ...

Jun 05, 2009
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