There are more than 400,000 species of beetles and only two species of the tuatara, a reptile cousin of snakes and lizards that lives in New Zealand. Crocodiles and alligators, while nearly 250 million years old, have diversified ...
Plants & Animals
Aug 28, 2012
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(Phys.org) -- Not all acts of altruism are alike, says a new study. From bees and wasps that die defending their nests, to elephants that cooperate to care for young, a new mathematical model pinpoints the environmental conditions ...
Evolution
Apr 30, 2012
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Scientists at the University of Liverpool have found that mice and rats have evolved to gnaw with their front teeth and chew with their back teeth more successfully than rodents that 'specialise' in one or other of these ...
Plants & Animals
Apr 27, 2012
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(PhysOrg.com) -- Three-spine sticklebacks aren't as pretty as many aquarium fish, and anglers don't fantasize about hooking one. But biologists treasure these small fish for what they are revealing about the genetic changes ...
Biotechnology
Apr 4, 2012
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In nature, how do host species survive parasite attacks? This has not been well understood, until now. A new mathematical model shows that when a host and its parasite each have multiple traits governing their interaction, ...
Plants & Animals
Mar 4, 2012
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Predictions of the loss of animal and plant diversity around the world are common under models of future climate change. But a new study shows that because these climate models don't account for species competition and movement, ...
Ecology
Jan 4, 2012
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UCLA life scientists and colleagues have produced the most comprehensive mathematical model ever devised to track the health of populations exposed to environmental change.
Ecology
Dec 3, 2011
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(PhysOrg.com) -- A new paper by researchers at the New England Complex Systems Institute reveals the limitations of evolutionary studies that ignore geography. They show that how individuals are arranged in space, and the ...
Evolution
Oct 19, 2011
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Harbouring a mistakenly inflated belief that we can easily meet challenges or win conflicts is actually good for us, a new study suggests.
Social Sciences
Sep 14, 2011
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If you are more inclined to love thyself than thy neighbor, it could be your mother's fault.
Evolution
Sep 22, 2010
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