There are about 120 species of frogs belonging to the genus Phyllobates, including the posion dart frog, that can secrete a ...

"Very few of them have been regulated for safety." Officials stunned after discovering source of dangerous contamination in town's drinking water: 'It's a terrible situation' first appeared on The ...

These chemicals exist in more than 14,000 forms. While several have been linked to health problems, such as cancer, lower ...

Most small-scale gold mining operations separate gold from ore by adding liquid mercury and then burning the mixture, ...