The devil is in the detail
Researchers have looked at a species of fish to help unravel one of the biggest mysteries in evolutionary biology.
Evolution
Jan 9, 2015
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Page 8 - News tagged with evolutionary selection
Proving 'group selection': Spider colonies need the correct mix of personalities to survive
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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Biologists confirm role of sperm competition in formation of new species
Female promiscuity—something that occurs in a majority of species, including humans—results in the ejaculates from two or more males overlapping within her reproductive tract. When this happens, sperm compete for fertilization ...
Evolution
Sep 26, 2013
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Researchers conclude that what causes menopause is—wait for it—men
After decades of laboring under other theories that never seemed to add up, a team led by biologist Rama Singh has concluded that what causes menopause in women is men.
Other
Jun 13, 2013
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Guppies and sexual conflict? It's a genital arms race
(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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Did the universe evolve to make black holes?
(Phys.org) —The maths underpinning Darwin's theory of natural selection could explain how the universe may be 'designed' to make black holes.
General Physics
May 6, 2013
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Study proposes alternative way to explain life's complexity
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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The evolutionary consequences of infidelity: Can extra-pair relationships give rise to sexual dimorphism?
In the bird world, male and female blue tits are hard to distinguish for the human observer. However, in the UV-range, visible to birds, the male is much more colourful. A closer look at the monogamous mating system of these ...
Evolution
Apr 3, 2013
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Why sticking around is sometimes the better choice for males
Researchers from Lund University and the University of Oxford have been able to provide one answer as to why males in many species still provide paternal care, even when their offspring may not belong to them. The study finds ...
Plants & Animals
Mar 26, 2013
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Researchers show gene controlling coat color in mice mutated nine times, results shed new light on how evolution works
For deer mice living in the Nebraska Sandhills, color can literally be the difference between life and death.
Evolution
Mar 14, 2013
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