Elephant Seal Mating
Three weeks after giving birth, the female elephant seal goes into heat. At that point, the male in control of the harem area on the beach where the female is will mate with her. This is not consensual. Other males may also try to mate with the female, and the alpha male will chase them off and fight if necessary to protect his harem. They're not too worried about what they step on chasing each other, and if a pup gets in the way, it can get injured or killed.
Piedras Blancas Elephant Seal Rookery, California