An international team of researchers has used ancient DNA to produce compelling evidence that the lack of genetic diversity in modern stallions is the result of the domestication process.
Plants & Animals
Aug 23, 2011
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What mechanisms control the generation and maintenance of biological diversity on the planet? It's a central question in evolutionary biology. For land-dwelling organisms such as insects and the flowers they pollinate, it's ...
Evolution
Aug 8, 2012
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Segmentation, the repetition of identical anatomical units, seems to be the secret behind the diversity and longevity of the largest and most common animal groups on Earth. Researchers from CNRS and Universite Paris Diderot ...
Plants & Animals
Jul 16, 2010
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For most social animals, even humans, the ability to distinguish friend versus foe can be a challenge that often can lead to knee-jerk aggression. But when it comes to ants getting aggressive, there's a more sophisticated ...
Plants & Animals
Feb 3, 2020
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An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. And it may also do so while infecting us, according to Duke University ...
Cell & Microbiology
May 24, 2009
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With mutations, it turns out that context can be everything in determining whether or not they are beneficial to their evolutionary fate.
Evolution
Jun 13, 2013
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(Phys.org)—The Cretaceous-age Hell Creek Formation of Montana is best known for the discovery over a century ago of Tyrannosaurus rex. It also has produced some of the best fossils from the end of the Age of the Dinosaurs ...
Archaeology
Oct 23, 2012
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Every parent with young children knows that couples need to work together to accomplish the myriad tasks waiting both at work and at home. But it may come as a surprise that fireflies also juggle their commitments to find ...
Evolution
Apr 5, 2011
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Most of the pups born in an elephant seal colony in California over a span of five decades were produced by a relatively small number of long-lived "supermoms", according to a new study by researchers at the University of ...
Plants & Animals
Sep 17, 2019
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Whether human or baboon, it helps to have friends. For both species, studies have shown that robust social networks lead to better health and longer lives. Now, a team of University of Pennsylvania researchers has helped ...
Plants & Animals
Oct 1, 2012
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