A flash of pink breaks the muddy surface of the Amazon River as scientists and veterinarians, waist-deep in the warm current, patiently work a mesh net around a pod of river ...

The miners use mercury to separate gold from sediment, then dump the sludge back into rivers, where it enters fish eaten by ...

A research team led by geophysicists at UC San Diego's Scripps Institution of Oceanography provides an explanation for ...