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Top stories: The evolution of white skin, baby faces, and why spiders are getting faster
(Left to right) W. CHEN ET AL., CELL RESEARCH (2015); DALLAS KRENTZEL/WIKIMEDIA/CREATIVE COMMONS; © NOAH ADDIS/CORBIS

Top stories: The evolution of white skin, baby faces, and why spiders are getting faster

Is your face the same age as you are?

If you are one of those lucky people who ages well, your youthfulness could be more than skin deep. Scientists have found biological differences in people whose faces don't match their age. In fact, a new study revealed that some baby-faced folk have blood profiles similar to those of younger people.

How Europeans evolved white skin

Most of us think of Europe as the ancestral home of white people. But a new study shows that pale skin, as well as other common traits like tallness and the ability to digest milk as adults, evolved relatively recently among Europeans.

Methane in drinking water unrelated to fracking, study suggests

Fracking doesn’t appear to be allowing methane to seriously contaminate drinking water in Pennsylvania, a new study finds—contrary to some earlier, much publicized research that suggested a stronger link. But the lead authors of the two bodies of research are sparring over the validity of the new results.

Spider speed increases as temperature rises

You're not the only one who's happy it's spring! A new study reveals that spiders get faster when the temperature is warmer. Researchers found that the difference was caused simply by faster stride frequency.

Poverty may affect the growth of children’s brains

A new study finds that family differences in income and education are directly correlated with brain size in children and adolescents. The findings could have important policy implications and provide new arguments for early antipoverty interventions.

Rats see the pain in other rats’ faces

When rats and mice are in pain, they make facial expressions just like humans do. But do these expressions mean anything to other rats? Now, researchers report that rats do pay attention to the emotional expressions of their fellows and can tell when another rat is suffering.