Anti-aphrodisiacs, penis sacrifice, vaginal plugging … when it comes to ensuring their own reproductive success, males from these animal species are prepared to go to extremes to keep their mates on the straight and narrow.

If you want to get lucky with the ladies you'd better learn to share. Just ask a few apes. In this episode of Wild Sex, female orangutans put potential partners to the test by shamelessly swiping their food – and only the most generous males will get the girl.