With no Minnie to its Mickey, this small mouse-like creature quickly reaches sexual maturity just one year after birth. Before mating season, their bodies stop the production of sperm and they can only use what has been stored. These critters go on a sexual rampage which can last up to fourteen hours, then move on to another female. With testosterone fuelled energy, the stress of continuous humping and bleeding internally, their hair falls off, their immune system weakens, and they get Gangrene. These mice still frantically try to mate as much as they can until the end of the mating season where they literally drop dead.
Forget stepping in the name of love, the hippopotamus defecates in the name of love. When the male hippopotamus finds a suitable female, he defecates and urinates to attract the female. The hippopotamus then proceeds to use its short tail to fan out its droppings and to smother it over himself some more. The new couple stunningly weighing a combined 13,000 pounds on average, both lumber into the water. The surprisingly buoyant males then mount the female who hold their breath and then struggle to get free to break the surface for a breath of air.