A beloved member of the Philadelphia Zoo’s primate population, the last of her kind in North America, has died. The zoo humanely euthanized Toi on Wednesday after a recent serious health decline, ...

PHILADELPHIA (AP) - The Philadelphia Zoo says a 21-year-old red-shanked douc langur monkey has been euthanized due to a serious decline in health. The zoo says the female primate named Toi had a ...

A baby Black-shanked douc langur was found abandoned in the forest in Mondulkiri but was placed under immediate care. A young male Black-shanked douc langur was rescued by members of the Mobile ...

Tam Ky, Quang Nam, Vietnam – A team of scientists from WWF and Conservation International (CI) has discovered the world’s largest known population of grey-shanked doucs (Pygathrix cinerea), increasing ...

A baby douc langur walks along a branch at the Singapore Zoo - Copyright AFP/File Roslan RAHMAN A baby douc langur walks along a branch at the Singapore Zoo ...

A rare monkey, the last of its kind in a North American zoo, was euthanized at the Philadelphia Zoo on Wednesday after a decline in its health. The 21-year-old monkey, Toi, was experiencing decreasing ...

PHILADELPHIA — The Philadelphia Zoo says a 21-year-old red-shanked douc langur monkey has been euthanized due to a serious decline in health. The zoo says the female primate named Toi had a variety of ...