High terrains might have been the training ground for cold adaptation before the Ice Age struck
The 2,300-year-old matrix is the world's oldest decimal multiplication table
Herbicide resistance and other genetic modifications could confer an advantage on plants in the wild
The accumulation of DDT in the Himalayas exceeds levels found in the Arctic
Emissions from transportation and industry have increased faster than those from agriculture
A survey has found that fishing, pollution and other human activities along the Yangtze River in China are driving a freshwater mammal, the Yangtze finless porpoise, to the brink of extinction...
Massive declines were discovered in coral reefs, mangrove swamps and wetlands
Researchers are calling for stringent and more heart-healthy air-quality controls during this era of rapid urbanization