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 ...

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Gelada baboons (Theropithecus gelada) live in small units, which consist of up to a dozen females, a few subordinate males and a dominant male, who holds exclusive reproductive rights to the females.

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 ...

Enrichment devices are important tools to engage zoo-housed animals in species-specific natural behaviours, which is critical to ensure animal welfare. The gelada Theropithecus gelada has a unique ...

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 ...