When a bacterial cell divides into two daughter cells and those two cells divide into four more daughters, then 8, then 16 and so on, the result, biologists have long assumed, is an eternally youthful population of bacteria. ...
Cell & Microbiology
Oct 27, 2011
15
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In the face of climate change, animals have an advantage over plants: They can move. But a new study led by Brown University researchers shows that plants may have some tricks of their own.
Biotechnology
Oct 6, 2011
0
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(PhysOrg.com) -- A new study published in the Proceedings of the National Academy of Sciences provides evidence of human evolution and rapid genetic changes suggesting that, contrary to modern claims, technological and cultural ...
Genetic parasites invaded the mammalian genome more than 100 million years ago and dramatically changed the way mammals reproduce -- transforming the uterus in the ancestors of humans and other mammals from the production ...
Biotechnology
Sep 25, 2011
9
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A type of fungus that's been lurking underground for millions of years, previously known to science only through its DNA, has been cultured, photographed, named and assigned a place on the tree of life.
Cell & Microbiology
Aug 11, 2011
0
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(PhysOrg.com) -- Until a recent discovery, theories about the origins and evolutionary relationships of snakes barely had a leg to stand on.
Evolution
May 18, 2011
2
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(PhysOrg.com) -- Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.
Evolution
May 11, 2011
18
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For the first time, scientists have been able to paint a detailed chemical picture of how a particular strain of bacteria has evolved to become resistant to antibiotics. The research is a key step toward designing compounds ...
Biochemistry
Apr 28, 2011
12
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(PhysOrg.com) -- A new study of the behavior of marmots suggests that a willingness to accept some extent of bullying, rather than shying away from interactions that could lead to conflict, may be inherited.
The more complex a plant or animal, the more difficulty it should have adapting to changes in the environment. That's been a maxim of evolutionary theory since biologist Ronald Fisher put forth the idea in 1930.
Evolution
Sep 27, 2010
5
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