See which species are endangered in the U.S.

Since it was signed by President Richard Nixon on December 28, 1973, the ESA has protected more than 2,000 animals and plants, becoming one of…

A century ago, we stocked non-native trout throughout national parks. Now native species like cutthroat trout must be transplanted in experime…

“The Endangered Species Act only protects that relatively small number of species that are right on the precipice of disappearing."

Guard dogs and range riders have protected people against bears for millennia. They may offer solutions for co-existing with grizzlies as the …

Getting Yellowstone National Park bison protected under the ESA might break "the stranglehold Montana has placed on recovering wild bison." Bu…

Would Arctic grayling in the Big Hole River benefit from federal protections afforded by being listed as an endangered or threatened species u…