Susan Baur, head of the Old Ladies Against Underwater Garbage, poses with some of the items she's recovered at the bottom of Cape Cod's freshwater ponds. For this week’s Joy Beat, we’re heading to the ...

An incredible moment under the waves at Beqa Lagoon in Fiji: a diver became a 'puppet master' as he demonstrated feeding dozens of hungry bull sharks using a garbage can suspended from ropes.

Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday. "Huge rivers like the Amazon can ...