Advocates say Southern sea otters are thriving in California’s Elkhorn Slough, but could face new risks if a proposed law change weakens the Endangered Species Act.

Stories like A Court of Thorns and Roses have been seducing audiences with tales of romance and magical danger for hundreds of years. Edward John Poynter's painting Orpheus and Eurydice, 1862. Fairies ...

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

These are 14 of the most epic single-day and multi-day hikes in the U.S., rivaling Yosemite, Arches National Park, and the ...