Scientists caught a male Japanese macaque red-butted (so to speak) trying to mate with several female sika deer. In the video, a few of the deer try to shake the little monkey off, but others just ...

A male monkey in Japan has been filmed trying to mate with a female deer—likely the first observation of two distantly related species having a nonviolent sexual encounter. Japanese macaques and sika ...

Some monkeys in Gombe National Park don't seem to mind if the monkey they're mating with is not their own species. Instead, "promiscuous" red-tailed and blue monkeys are coming together and making ...

The deer and the monkey face each other after one of their meetings. Photo/YouTube In an animal pairing not even Disney could think up, a snow monkey in Japan has been filmed trying to mate with deer ...

The macaque attempted to mate with at least two Sika deer A male Japanese monkey has been filmed trying to mount and mate with a Sika deer. Researchers saw the primate attempting to mate with at least ...

You’ve heard the saying: Size matters. Of course, it depends on what you’re talking about — and whom you’re talking to. But for male proboscis monkeys from Malaysia, it turns out that having a bigger ...

One of Africa's rarest monkeys likely interbred with baboons in its past, new genetic research suggests. The large monkey called Rungwecebus kipunji, or kipunji for short, was only discovered in 2003, ...

Northern muriquis, which live in the Atlantic forest of Brazil, are one of the most endangered species of monkey in the world. To better understand what goes on in the mating lives of muriquis, ...

The wide-eyed, smiley-faced male Azara’s owl monkeys of Argentina are among the most faithful mates and best fathers in the world, according to a study that also found a strong link between fidelity ...

A male Japanese monkey has been filmed trying to mount and mate with a Sika deer. Researchers saw the primate attempting to mate with at least two deer in November 2015, during the macaque breeding ...