AAAS Symposium Sheds Light on Potential Disasters—and Remedies The Mekong River courses over some 2,700 miles of dramatically changing terrain, traverses six Southeast Asian countries from China’s Tibetan Plateau to the South China Sea, supports one of the planet’s most productive inland fisheries and continues to reshape a region it has defined for thousands of years.

This toothed whale lives in northern and central South America and often turns pink as it gets older!

Satellite images of a town in Nigeria’s oil-rich southern delta confirm that “significant” oil spills have contaminated nearby waterways and killed plant life across thousands of acres of tropical riparian landscape, says a report released today by AAAS.