Biology news

Plants live, die according to their size

Plants self-regulate their populations to maintain stability and optimize their lives, with the lengths of their lives directly related to their mass, a recent study has found. Further, a single scaling power ...

Oct 22, 2007 feature
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First genome transplant changes one species into another

For the first time, scientists have completely transformed a species of bacteria into another species by transplanting its complete set of DNA. The achievement marks a significant step toward the construction ...

Aug 16, 2007 feature
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Is there a homosexuality gene?

Although biologists are still far from answering this question, scattered evidence for a possible gene influencing sexual orientation has recently encouraged scientists to map out a guide to future research. Because many ...

Dec 07, 2006 feature
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Study finds facial expressions are inherited

Scientists have found that family members share a facial expression “signature”—a unique form of the universal facial expressions encountered worldwide. In a rare study taking into account blind subjects, Gili Peleg, ...

Nov 07, 2006 feature
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New motor first to be powered by living bacteria

A new motor designed by scientists from Japan offers the best of both worlds: the living and the non-living. The group built a hybrid micromachine that is powered by gliding bacteria which travels on an inorganic ...

Oct 12, 2006 feature
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Uranium 'pearls' before slime

Since the discovery a little more than a decade ago of bacteria that chemically modify and neutralize toxic metals without apparent harm to themselves, scientists have wondered how on earth these microbes do ...

Aug 08, 2006
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Ancient Global Warming Drove Early Primates' Dispersal

The continent-hopping habits of early primates have long puzzled scientists, and several scenarios have been proposed to explain how the first true members of the group appeared virtually simultaneously on Asia, Europe and ...

Jul 25, 2006
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Genes tell story of birdsong and human speech

His office is filled with all sorts of bird books, but Duke neuroscientist Erich Jarvis didn't become an expert on the avian family tree because of any particular interest in our feathered friends. Rather, ...

Dec 11, 2014
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