Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine (March 18) by Mollie Manier, John Belote and Scott Pitnick, professors of ...
Cell & Microbiology
Mar 18, 2010
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(Phys.org) —It's not always easy to tell if a fish is male or female: they look more or less the same. But there are exceptions, such as guppies and, as with humans, guppy genitalia varies in size across the species.
Plants & Animals
Jun 3, 2013
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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
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An evolutionary framework aiming to track the pathways wild organisms followed to survive and thrive in environments dominated by humans has been developed for the first time.
Ecology
Jun 13, 2016
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We do it every day but barely give it a thought: chewing our food. But the "simple" process of masticating food may have played a crucial role in the evolution of our jaws, facial muscles and teeth.
Evolution
Aug 17, 2022
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Along rivers in Tennessee and Georgia, scientists have been studying brownish-orange spiders, called Anelosimus studiosus, that make cobwebby nests "anywhere from the size of a golf ball to the size of a Volkswagen Beetle," ...
Plants & Animals
Oct 1, 2014
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Chemical signals used by the eggs of broadcast spawning invertebrates to assist sperm in fertilisation could also play a role in sexual selection, or mate choice.
Plants & Animals
Oct 2, 2013
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Nipple size varies markedly from woman to woman, whereas male nipples are more uniform. This finding goes against a common assumption of evolutionary biology, say Ashleigh Kelly and her colleagues from the University of Queensland ...
Evolution
Jun 26, 2018
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15
A team of researchers with members from Harvard University and one from the University of California San Diego has carried out experiments with yeast that show more-fit lineages are less tolerant to deleterious mutations ...
It's not just good manners to wait your turn -- it's actually down to evolution, according to new research by University of Leicester psychologists.
Evolution
Jul 9, 2009
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