By Shanna Hanbury A group of geladas monkeys (Theropithecus gelada), pictured above, huddle to keep warm on a cold day in the ...

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The grunts, moans and wobbles of gelada monkeys, a chatty species residing in Ethiopia’s northern highlands, observe a universal mathematical principle seen until now only in human language. The new ...

I have been a little tied up with other writing duties today, so in lieu of a "normal" post here is another snapshot from my trip to the Bronx Zoo last weekend. It is of a young male gelada baboon ...

A captive monkey is rescued and released into the remote and beautiful mountains of northern Ethiopia. SIMIEN MOUNTAINS, NORTHERN ETHIOPIA: David, a two-year-old gelada baboon, has spent almost his ...

Humans, along with most other vertebrates, yawn. It's likely an ancient behavior with some adaptive advantages. Although we most often associate yawning with boredom or sleepiness, it may serve more ...

It is of a young male gelada baboon (Theropithecus gelada) that came down to the moat to drink. He had just been involved in a major altercation. The entire troop went running after another young male ...