News tagged with hypothesis

Related topics:

Stem cells 'by default'

In spite of considerable research efforts around the world, we still do not know the determining factors that confer stem cells their main particular features: capacity to self-renew and to divide and proliferate. The scientist ...

dateApr 12, 2012 in Cell & Microbiology
shares0 comments 0

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 ...

dateMar 27, 2012 in Evolution
shares0 comments 25

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 ...

dateMar 22, 2012 in Other
shares0 comments 0

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 ...

dateFeb 29, 2012 in Archaeology & Fossils
shares0 comments 0

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.

dateFeb 29, 2012 in Space Exploration
shares0 comments 3