No Place to Grow Old has screened 92 times since its premiere last fall. The documentary produced by the nonprofit Humans for ...

New research finds old age likely impacts the habitual tool-use behaviours of some wild chimpanzees, and the extent to which different individuals are affected is highly variable.

A Utah father’s custom-built hiking wheelchair for his daughter is now helping 1,200 families in 23 countries enjoy the ...

In the misty hills of eastern Nepal near the border with India, 48-year-old farmer Surya Bhattarai patrols the steep slopes ...

Kami Rita Sherpa has broken his own record for climbing to the summit of Mount Everest, reaching the peak for the 31st time on Tuesday. Now 55, Kami Rita first climbed to the top of the world's ...

Mountaineer Kami Rita Sherpa broke his own record after climbing Mount Everest for the 31st time. He's seen here last year, acknowledging a crowd that celebrated his then-record 30th summit of ...

Kami Rita Sherpa first climbed to the top of the world's highest mountain in 1994. He has climbed Everest nearly every year since the 1990s — sometimes more than once in a single season.