A rare image of a monkey riding on a deer's back has gone viral after the U.K. Natural History Museum released it in a preview of its Wildlife Photographer of the Year competition. The photograph, ...

It’s a strange breed of love. Two species of completely different animals — a monkey and a deer — were recorded having “consensual” sex for the first time ever, according to a report released Tuesday.

Scientists spot a macaque in the middle of an unspeakable act, almost certainly leading to the revocation of all his deer dinner party invitations. Eric Mack has been a CNET contributor since 2011.

In only the second recorded instance of interspecies sex, a male snow monkey has been filmed attempting to have intercourse with female sika deer on Yukushima Island in Japan, with researchers citing ...

Today is trash. This week, in fact, has all been trash. But, hey, at least we have the second recorded example (ever!) of so-called "sexual relations" between two distantly related species to marvel ...

It’s not monkey business, it’s monkey science. Marking only the second time sex has been observed between two wild animals from wildly different species, scientists recorded a male snow monkey ...

After spending a few months observing macaque monkeys living in a Japanese forest, a group of scientists found a pattern of behavior they described as both "unusual" and "intriguing." Adolescent ...

An adolescent female Japanese macaque on the back of a male sika deer. Researchers have looked into some macaques' attraction to the deer. Adolescent female monkeys in Japan have repeatedly engaged in ...

The deer and the monkey face each other after one of their meetings. Photo/YouTube After reports earlier this year of monkey and deer engaging in sexual encounters, researchers have now found another ...

Just like us, our primate relatives seek sexual gratification, though the ways they do so might seem a little strange. Ongoing research on the Japanese macaque (Macaca fuscata), also known as the snow ...