A group of geladas monkeys (Theropithecus gelada), pictured above, huddle to keep warm on a cold day in the Wilhelma Zoo in Stuttgart, Germany. Endemic to Ethiopia’s cold Afroalpine and sub-Afroalpine ...

Geladas (a male and female in the Simien Mountains) signal their status with the livid skin on their chests. Anup Shah and Fiona Rogers Geladas are isolated, oddball monkeys that science has largely ...

With their bright red, hairless chests and grass-grazing lifestyle, gelada monkeys are quite unusual. They are the only primate, other than humans, to primarily live on land instead of in trees, and a ...

During a 10-year span, a team of primatologists witnessed 15 daytime births in wild gelada monkeys residing in the grasslands of high-altitude Ethiopia. It's unusual to witness daytime births. Most ...