News tagged with evolutionary mechanism
Study sheds light on evolution of human complexity
Nov 03, 2009 |
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(PhysOrg.com) -- A painstaking analysis of thousands of genes and the proteins they encode shows that human beings are biologically complex, at least in part, because of the way humans evolved to cope with redundancies arising ...
Small evolutionary shifts make big impacts, study finds
May 20, 2009 |
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(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive ...
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'You will give birth in pain': Neanderthals too
Other Sciences / Archaeology & Fossils
Apr 21, 2009 |
4.5 / 5 (11) |
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(PhysOrg.com) -- Researchers from the University of California at Davis (USA) and the Max Planck Institute for Evolutionary Anthropology in Leipzig (Germany) present a virtual reconstruction of a female Neanderthal ...
New insights into the physiology of cockroaches
Nov 13, 2009 |
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A study by scientists from the University of Valencia sheds new light on how the cockroach organism works. A research team from the Cavanilles Institute for Biodiversity and Evolutionary Biology, led by professors Amparo ...
Prion switching in response to environmental stress
Biology /
Nov 25, 2008 |
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If you have had a hard day at work, you may change your eating habits, perhaps favoring comfort food, but you don't suddenly develop the ability to eat the plate and cutlery. A new paper, published in this week's issue of ...
New cell division mechanism discovered
Biology /
Oct 28, 2008 |
4.7 / 5 (22) |
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A novel cell division mechanism has been discovered in a microorganism that thrives in hot acid. The finding may also result in insights into key processes in human cells, and in a better understanding of the main evolutionary ...
Predators and parasites may increase evolutionary stability
Biology /
Oct 26, 2007 |
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A new study explores the role of natural enemies, such as predators and parasites, for mixed mating, a reproductive strategy in which hermaphroditic plants and animals reproduce through both self- and cross-fertilization. ...
Trust in a teardrop: Researcher says tears can help build, strengthen personal relationships
Other Sciences / Social Sciences
Aug 24, 2009 |
3.5 / 5 (2) |
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Medically, crying is known to be a symptom of physical pain or stress. But now a Tel Aviv University evolutionary biologist looks to empirical evidence showing that tears have emotional benefits and can make interpersonal ...
Birds use social learning to enhance nest defense
Jun 04, 2009 |
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Reed warblers live with the threat that a cuckoo bird will infiltrate their nest, remove one of their eggs, and replace it with the cuckoo's own. This 'parasitism' enables the cuckoo to have its young raised by unsuspecting ...
Flies avoid a plant's poison using a newly identified taste mechanism
Jun 30, 2009 |
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Many plants protect themselves from hungry animals by producing toxic chemicals. In turn, animals rely on detecting the presence of these harmful chemicals to avoid consuming dangerous plant material. A paper, published in ...
Research links evolution of fins and limbs with that of gills
Mar 23, 2009 |
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The genetic toolkit that animals use to build fins and limbs is the same genetic toolkit that controls the development of part of the gill skeleton in sharks, according to research to be published in Proceedings of ...
Pulling together increases your pain threshold
Other Sciences / Social Sciences
Sep 16, 2009 |
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(PhysOrg.com) -- A study of Oxford rowers shows that members of a team who exercise together are able to tolerate twice as much pain as when they train on their own.
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