The feeding habits of mammals haven't always been what they are today, particularly for omnivores, finds a new study.
Plants & Animals
Apr 16, 2012
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Physically fit frogs have faster-changing genomes, says a new study of poison frogs from Central and South America.
Evolution
Apr 12, 2012
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From miniature elephants to monster mice, and even Hobbit-sized humans, size changes in island animals are well-known to science. Biologists have long believed that large animals evolving on islands tend to get smaller, while ...
Plants & Animals
Mar 23, 2012
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A growing body of research shows that birds and other animals change their behavior in response to manmade noise, such as the din of traffic or the hum of machinery. But human clamor doesn't just affect animals. Because many ...
Ecology
Mar 20, 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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We often think of rainforests and coral reefs as hotspots for biodiversity, but mountains are treasure troves for species too -- especially in the tropics, scientists say. But what drives montane biodiversity? The diversity ...
Environment
Jun 8, 2011
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1
Some birds that live near noisy sites can alter their songs to deal with din. But closely related species with similar songs may tweak their tunes in different ways, says a new study led by Clinton Francis of the National ...
Plants & Animals
May 26, 2011
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The most toxic, brightly colored members of the poison frog family may also be the best athletes, says a new study.
Plants & Animals
Mar 29, 2011
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For the vast majority of plants and animals, the 'bigger is better' view of evolution may not be far off the mark, says a new broad-scale study of natural selection. Organisms with bigger bodies or faster growth rates tend ...
Evolution
Mar 7, 2011
8
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Saber-toothed cats may be best known for their supersized canines, but they also had exceptionally strong forelimbs for pinning prey before delivering the fatal bite, says a new study in the journal PLoS ONE.
Archaeology
Jul 3, 2010
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