Biologists have known for a long time that some creatures evolve more quickly than others. Exactly why isn't well understood, particularly for plants. But it may be that height plays a role, says Robert Lanfear of Australian ...
Evolution
May 21, 2013
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A tiny bird fossil discovered in Wyoming offers clues to the precursors of swift and hummingbird wings. The fossil is unusual in having exceptionally well-preserved feathers, which allowed the researchers to reconstruct the ...
Archaeology
May 1, 2013
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Evolution skeptics argue that some biological structures, like the brain or the eye, are simply too complex for natural selection to explain. Biologists have proposed various ways that so-called 'irreducibly complex' structures ...
Evolution
Apr 12, 2013
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Africa isn't the kind of place you might expect to find penguins. But one species lives along Africa's southern coast today, and newly found fossils confirm that as many as four penguin species coexisted on the continent ...
Plants & Animals
Mar 26, 2013
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Researchers studying aging in an endangered lemur known as the Milne-Edwards' sifaka report that in old age, females are the safer sex.
Plants & Animals
Feb 28, 2013
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Deep in the scrublands of Keoladeo National Park in northwest India, one thing was hard for biologist Jessica Yorzinski to ignore: It wasn't the heat. It wasn't the jackals. It was the squawks of peacocks in the throes of ...
Plants & Animals
Dec 20, 2012
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The question of how life began on a molecular level has been a longstanding problem in science. However, recent mathematical research sheds light on a possible mechanism by which life may have gotten a foothold in the chemical ...
Biochemistry
Nov 26, 2012
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What makes some ocean animals more prone to extinction than others? A new study of marine fossils provides a clue.
Ecology
Oct 23, 2012
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A new study of deep-sea species across the globe aims to understand how natural gradients in food and temperature in the dark, frigid waters of the deep sea affect the snails, clams, and other creatures that live there.
Plants & Animals
Sep 5, 2012
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A new study of North American songbirds reveals that birds that live with fluctuating weather are more flexible singers.
Plants & Animals
Aug 3, 2012
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