(Phys.org)—The relationship between species determines how rapidly they evolve. Parasites and their hosts coevolve more rapidly, and partners in a mutualistic relationship can evolve more slowly. But this view is obviously ...
Evolution
Sep 24, 2012
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It's an age old question: Why do we do good? What makes people sometimes willing to put "We" ahead of "Me?" Perhaps our first impulse is to be selfish, and cooperation is all about reining in greed. Or maybe cooperation happens ...
Social Sciences
Sep 19, 2012
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New research from anthropologists at the University of Kent may have important ramifications for the future study of the role of colour signals in human social and sexual interactions.
Social Sciences
Apr 19, 2012
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A current controversy raging in evolutionary biology is whether adaptation to new environments is the result of many genes, each of relatively small effect, or just a few genes of large effect. A new study published in Molecular ...
Evolution
Apr 3, 2012
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Evolutionary biologist, author and National Medal of Science winner Lynn Margulis (MAR'-guh-liss) has died.
Other
Nov 23, 2011
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(PhysOrg.com) -- It seems we may have parasites to thank for the existence of sex as we know it. Indiana University biologists have found that, although sexual reproduction between two individuals is costly from an evolutionary ...
Plants & Animals
Jul 7, 2011
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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.
If you think summer in your hometown is hot, consider it fortunate that you don't live in the Turkana Basin of Kenya, where the average daily temperature has reached the mid-90s or higher, year-round, for the past 4 million ...
Earth Sciences
Jun 8, 2010
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Ancient human teeth are telling secrets that may relate to modern-day health: Some stressful events that occurred early in development are linked to shorter life spans.
Archaeology
Feb 4, 2010
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(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in the environment.
