Are humans the only species that masturbates? Well, yes and no. We may not be the only species that likes to play with ourselves, but we appear to be the only species that does it for the explicit purpose of cumming. And we do it A LOT.
For many years now, scientists have been trying to come up with a reliable form of male contraceptive that isn’t a condom. Hormones don’t do the trick. So what did the scientists do? Polyester underpants.