Male Japanese macaques were first filmed earlier this year mounting female sika deer in Minoo, Japan. However, scientists have su g ges ted the unusual beha viour may well be sexual after adolescent female monkeys and sika stags were also observed copulati ng. Publishing their findings in the Archives of Sexual Behavriour journal, researchers hypothesised that there could be several different reasons why the animals are taking part in inter-species sex. They suggested young female monkeys may be using the interactions as practice for eventual mating with male macaques. The Minoo macaques and deer are not the only animals known to look for sex outside their own species.
91 Monkeys Having Sex stock videos and b-roll footage
Sex between monkey and deer may be a new 'behavioural tradition', scientists say | The Independent
Sexy scent. A whiff of ovulating females activates many regions of male marmosets' brains. Male marmosets don't act like beasts when it comes to sex, new research shows. When sniffing out a potential mate, their whole brains, including regions used in decision-making, zing with activity--just as happens with humans, researchers have found. Male animals aren't thought to be particularly choosy when they mate, instead trying to inseminate as many females as possible. Although it sometimes may seem hard to believe, human males apparently have more than that going on in their heads.