Nov. 5 (UPI) --Primates can alter the rate at which they reach sexual maturity. Previous studies have shown a variety of factors, including food availability, can determine whether primates mature ...

The vocal lip-smacks that geladas use in friendly encounters have surprising similarities to human speech, according to a new study. The geladas, which live only in the mountains of Ethiopia, are the ...

“When we first started working with geladas in 2006, we noticed sounds like people were talking around you,” said evolutionary biologist Thore Bergman of the University of Michigan. “Most primates ...

When a new breeding male comes on the scene, prepubescent female geladas hurry to mature — displaying conspicuous 'sexual swellings' on their chests, a study found. Researchers from the US said that ...

Peaceful interactions rarely occur between a predator and prey. But researchers in Ethiopia caught wild wolves and monkeys called geladas intermixing without agression. The seemingly tamed wild wolves ...

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. ...

The ability to mimic the facial expressions of others is thought to be linked to empathy. It's known that humans and orangutans "ape" each other in this way, but gelada monkeys appear to do it too, a ...

For female gelada monkeys, a grunt from a male primate won't suffice to get her attention. The call of the wild must involve moans, wobbles or yawns to entice these females, according to a new study ...

Catching the attention of a potential mate isn't always an easy thing, and to woo a female gelada monkey, a simple grunt just isn't good enough. In order to entice their mates, male gelada monkeys ...