A WCS study conducted around Lake Tahoe, Nevada shows that a life of garbage-eating, early pregnancies, and violent deaths plague black bears in the big city.

Once numbering in the tens of millions, guanacos have dramatically declined  NEW YORK (June 10, 2008) –  The Wildlife Conservation Society has launched a study in Chile’s Karukinka reserve on Tierra del Fuego to help protect the guanaco –  a wild cousin of the llama that once roamed in vast herds from the Andean Plateau to the steppes of Patagonia.Today, the guanaco population has dwindled to perhaps half a million animals that live in highly fragmented populations due to habitat ...

In Mongolia, increased vehicular and pedestrian traffic is strangling the narrow migration corridor for the saiga—Asia’s odd-ball antelope with the enormous schnoz.

As western states debate removing the gray wolf from the Endangered Species List, WCS researcher Dr. Kim Berger speaks out on behalf of an unsuspecting wolf ally: the pronghorn antelope.

After an absence from NYC since colonial times, the beaver has returned, taking up residence at the Bronx Zoo, along the banks of the Bronx River.