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 ...

The gelada monkey, also known as the bleeding heart baboon, makes a gurgling noise or wobble sound that scientists say is close to human speech — at least in how much facial coordination it requires. ...

In nature, it is not usual for animals to be deceptive, as evolution has typically favored communication that benefits both the sender and receiver by conveying reliable information. But, there are ...

For a brief second, a young gelada female interrupts her foraging to stare into the camera. These Ethiopian monkeys have to eat throughout the day to obtain enough nutrients from their primary food ...

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 ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Left: a gelada male attacks two females, who respond with screams and bared-teeth facial expressions. Right: one of the study subjects, feeding, is about to receive the audio stimulus; the ...

Between secret rendezvous, deleted messages and outright lies, people will go to great lengths to cover up unfaithful acts. But it now seems we aren't unique in our deception — gelada baboons also ...

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 ...

As a group, primates aren’t really known for their ability to create vocalizations, or sophisticated or complex sounds with their mouths. Yes, we humans have shown some talent in that area — what with ...