Your recent editorial, “Primate research faces extinction,” makes two points: that the Japanese macaque, Macaca fuscata, may be an endangered species, and that its use for research purposes by ...

In 2017, a single male macaque was observed trying to mate with a female deer in Yakushima, Japan—now other monkeys are doing it Japanese monkey interacting with deer on a road.

Nguyen Van Trung, a resident of Tan Nhut Commune in the district, brought the macaque to forest rangers, explaining that he had been given the animal with a severed tail in 2024. After keeping it in ...

By using this self-scratching activity as a behavioral indicator of stress, a study on wild female Japanese macaques has provided a novel and counter-intuitive finding: females exhibit higher ...