News tagged with hypothesis

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The Black Queen Hypothesis: A new evolutionary theory

Microorganisms can sometimes lose the ability to perform a function that appears to be necessary for their survival, and yet they still somehow manage to endure and multiply. How can this be? The authors of an opinion piece ...

Mar 27, 2012
4.1 / 5 (7) 25 | with audio podcast

Runner's high motivated the evolution of exercise

In the last century something unexpected happened: humans became sedentary. We traded in our active lifestyles for a more immobile existence. But these were not the conditions under which we evolved. David Raichlen from the ...

Mar 22, 2012
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Triceratops controversy continues

Millions of years after its extinction, Triceratops is inciting controversy about how to classify the ancient animals. New analysis, published Feb. 29 in the open access journal PLoS ONE, suggests that the specimens in question s ...

Feb 29, 2012
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A bad day on Venus gets even worse

Contrary to its alluring name, Venus is the planet from hell, with an atmosphere so hot, toxic and heavy that any visitor would risk being simultaneously melted, suffocated and crushed.

Feb 29, 2012
5 / 5 (6) 3

Plants may have a single ancestor

(PhysOrg.com) -- An international group of scientists has analyzed the DNA of primitive microscopic algae, and their findings suggest that all plants on Earth may have had a single ancestor.

Feb 17, 2012 report
4.9 / 5 (17) 8 | with audio podcast