Sunday, September 13, 2009
Saturday, September 12, 2009
Wednesday, September 9, 2009
Did early humans evolve in Europe, not Africa?
Received wisdom that modern humans emerged in Africa then dispersed across the rest of the globe is being challenged by skulls found in Dmanisi, a site in Georgia to the south of Russia.Analysis of the skulls suggests that instead, small numbers of very early ancestors of modern-day humans may have migrated to Europe, where they evolved into Homo erectus, the immediate predecessor of modern Homo sapiens.Then, Homo erectus filed back into Africa before eventually making the crucial transition to Homo sapiens.
Tuesday, September 8, 2009
Monday, September 7, 2009
Seed variety loss seen hampering climate response
Farmers in developing countries are losing traditional varieties because of growing corporate control of the seeds they plant, hampering their ability to cope with climate change, a London-based think tank said on Monday.
The International Institute for Environment and Development (IIED) said in a report that the diversity of traditional seed varieties is falling fast and this means valuable traits such as drought and pest resistance could be lost forever.
The report was issued ahead of the World Seed Conference which opens on Tuesday at the United Nations Food and Agriculture Organization in Rome.
The International Institute for Environment and Development (IIED) said in a report that the diversity of traditional seed varieties is falling fast and this means valuable traits such as drought and pest resistance could be lost forever.
The report was issued ahead of the World Seed Conference which opens on Tuesday at the United Nations Food and Agriculture Organization in Rome.
Sunday, September 6, 2009
Schwarzenegger to Obama cabinet: Water... please!
Wednesday, September 2, 2009
Tuesday, September 1, 2009
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