A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.

Black desert cobras, or Walterinnesia aegyptia, are deadly snakes with a neurotoxic venom found as far south as the ...

The endangered mammals are among the smallest of their kind in North America, according to the Bureau of Land Management.

Spending time in nature can lead to “improved health, quality of life, and well-being” in older people, according to the International Journal of Environmental Research and Public Health. But sleeping ...