These Unbelievably Rare Facts Even Left Us Feeling Confused

Nature can be really weird, and it can be really impressive. Often, it’s both at the same time. Some animals have, over eons of development, come up with strange but very effective behaviors to get things done. Take, for instance, the noble giraffe.

For humans, most of us would be mad if someone headbutted us until we peed, but for giraffes, it is useful when it comes to trying to make sure the females get pregnant and give birth to the calves that will keep the population going.