10 Facts You Never Knew About Cats
Uniquely enough, cats have scent glands in their faces that release various pheromones for when they rub against a human being. This is thought to be the dog equivalent of peeing on your leg or furniture.
Cats have been known to headbutt a human that they trust or that makes them feel entirely safe and secure. This is simply a sign of endearment, and should absolutely be rewarded with a pet on the head or a scratch behind the ear.