Study examines the evolutionary fate of 'useless' traits
What happens when traits no longer give creatures a competitive edge?
Evolution
Sep 8, 2009
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Page 7 - News tagged with evolutionary selection
New approach precisely tracks evolution's footprints in the human genome
(PhysOrg.com) -- Fossils may provide tantalizing clues to human history but they also lack some vital information, such as revealing which pieces of human DNA have been favored by evolution because they confer beneficial ...
Evolution
Jan 7, 2010
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Smallest species shifting the fastest: Bird body size predicts rate of change in a warming world
Birds across the Americas are getting smaller and longer-winged as the world warms, and the smallest-bodied species are changing the fastest.
Plants & Animals
May 8, 2023
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Genetic similarity promotes cooperation
In a dog-eat-dog world of ruthless competition and 'survival of the fittest,' new research from the University of Leicester reveals that individuals are genetically programmed to work together and cooperate with those who ...
Evolution
Apr 18, 2012
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New study finds evolution mostly driven by brawn, not brains
The most common measure of intelligence in animals, brain size relative to body size, may not be as dependent on evolutionary selection on the brain as previously thought, according to a new analysis by scientists.
Evolution
Oct 15, 2012
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Animals who try to sound 'bigger' are good at learning sounds
Some animals fake their body size by sounding bigger than they actually are. Maxime Garcia from the University of Zurich and Andrea Ravignani from the Max Planck Institute for Psycholinguistics studied 164 different mammals ...
Plants & Animals
Jul 7, 2020
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Males help keep populations genetically healthy
A few males are enough to fertilize all the females. The number of males therefore has little bearing on a population's growth. However, they are important for purging bad mutations from the population. This is shown by a ...
Evolution
Jun 28, 2021
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Alternative evolution: Why change your own genes when you can borrow someone else's?
It has been a basic principle of evolution for more than a century that plants and animals can adapt genetically in ways that help them better survive and reproduce.
Evolution
Jul 8, 2010
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Why do animals, especially males, have so many different colors?
(PhysOrg.com) -- In new research, UCLA scientists claim that "secondary sexual traits" like coloring may let animals know which species to avoid fighting.
Plants & Animals
Oct 31, 2009
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Scientists say natural selection alone can explain eusociality
Scientists at Harvard University have sketched a new map of the "evolutionary labyrinth" species must traverse to reach eusociality, the rare but spectacularly successful social structure where individuals cooperate to raise ...
Evolution
Aug 25, 2010
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