Guanacos are back -- and getting into trouble -- says a team of scientists tracking these iconic hoofed mammals across a variety of landscapes on the Chilean side of the island of Tierra del Fuego.

Pumas, like other large cats, are predacious animals that seek large prey capable of sustaining themselves and their cubs for extended periods. But sometimes, their large prey can be just a bit ...

SAN FRANCISCO (KGO) -- The San Francisco Zoo family has grown by one more after the birth of a guanaco Saturday, according to zoo officials.

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 ...

Olivia, the last member of the guanaco herd at the Louisville Zoo, has been euthanized. The guanaco had been struggling with "age-related arthritic changes and mobility issues" that affected her ...

The Louisville Zoo announced on its Facebook Tuesday that it lost one of its animals.The zoo’s female guanaco, Olivia, had to be euthanized after dealing with mobility issues that the zoo said were ...

SAN FRANCISCO -- The San Francisco Zoo family has grown by one more after the birth of a guanaco Saturday, according to zoo officials. The infant made her arrival around 2 p.m. in the Puente al Sur ...

The San Francisco Zoo has just announced its newest addition: a baby female guanaco, born on Saturday at 2:00pm, and weighing under 30 pounds at birth. The chulengo — as baby guanacos are called — is ...

A family of vicuñas prepares to rest for the night in Argentina's San Guillermo National Park before the 2014 mange outbreak that wiped out the local population. (Hebe del Valle Ferreyra) Mange has ...