The Khao Kheow Open Zoo was overrun with Moo Deng fans on the first of four days of activities marking the hippo’s birthday.

Activist Tommy Garnett's decades of work paid off when Sierra Leone's Tiwai island -- a lush forest home to one of the ...

Macroinvertebrates include snails and larvae of dragonflies, caddisflies, mayflies and stoneflies, among others. They can be ...

For nearly a century, scientists have been puzzling over fossils from a strange and robust-looking distant relative of early ...

CNN’s Patrick Snell visits Times Square in New York and speaks to fans about how they are preparing for the heat ahead of ...