"Out of Africa" theory further confirmed
A new genetic analysis of 938 individuals from 51 populations around the world adds further confirmation to the theory of African origin of humans, media reported Friday. Researchers looked at variations in 650,000 sections of each ... english.people.com.cn
Gauging Age of Universe Becomes More Precise
Two additional years of data from a NASA satellite have narrowed the uncertainty in the age of the universe by tens of millions of years. nytimes.com
Findings: Are We Ready to Track Carbon Footprints?
People are not good at making immediate sacrifices for an abstract benefit in the future, especially when they have a hard time understanding the problem. nytimes.com
Bird poison clampdown 'needed'
More needs to be done to prevent the poisoning of birds of prey on grouse moors, a review says. news.bbc.co.uk