This despite the fact that his dog also mounted female dogs and female humans and showed myriad other signs of stress! (dogster.com)
A certain amount of aggression is normal for these seals during mating: for a male to mount a female in the water, he must bite her back to get a grip. (discovermagazine.com)
The bats copulate dorso - ventrally, with the male mounting the female from behind. (newscientist.com)