Africans have more genetic variation than anyone else on Earth, according to a new study that helps narrow the location where humans first evolved, probably near the South Africa-Namibia border.More
London - An ugly scramble is brewing over the swine flu vaccine - and when it becomes available, Britain, the United States and other nations could find that the contracts they signed with pharmaceutical companies are easily broken.More
Los Angeles - On naked patches of land in western Canada and United States, scientists are planting trees that don't belong there. It's a bold experiment to move trees threatened by global warming into places where they may thrive amid a…More
London - Health officials in Britain have issued a torrent of conflicting advice on swine flu, telling people to avoid travel, stay away from crowds and even advising women to delay getting pregnant until the virus subsides.More
Harare, Zimbabwe - A desperate, white Zimbabwean farmer fighting to hold onto his land -- a year after the country's political rivals pledged to govern jointly -- fears he will eventually lose to politics and violence.More
