Wild, deadly or just awkward, animal sex is about more than just making babies. Nat Geo WILD is counting down the top 10 sexual athletes of the animal world. Immaculate conception is not a myth; one animal on this list can actually give birth without a partner. The term man-eater gets a new meaning when it comes to praying mantises: females may eat the males during copulation. And when temperatures rise, male snakes come out of their eight-month hibernation with one thing on their mind: sex.