Just when you thought it was safe to go in the water... Sharks can be scary to encounter when swimming in the ocean. But they are not the most dangerous threat one can face at the beach. A new study from the University of Miami suggests that microbes in the water should be of much greater concern, especially in warmer waters. The team found that swimmers at sub-tropical beaches face an increased...

Wild populations of the iconic Mekong giant catfish will be driven to extinction if hydropower dams planned for the Mekong River go ahead, says a new report by WWF. Current scientific information suggests the Mekong giant catfish migrate from the Tonle Sap Lake in Cambodia up the Mekong River to spawn in northern Thailand and Laos. Any dam built on the lower Mekong River mainstream will block this migration route.

The Galapagos Islands have been removed from the UNESCO list of sites endangered by environmental threats or overuse. The island chain, about 620 miles off Ecuador's coast, is home to unique animal species that inspired Charles Darwin's ideas on evolution.