The Onion's Horrifying Planet series shifts its focus to spiders and just how truly disgusting they are. It's a well known fact that spiders really have no other purpose than to freak out all other creatures, most notably humans. Sure, scientists will tell you they have a legit function like eating insects or whatever, but that's just brainy talk.
This host hits the nail on the head with his disgust and ridicule of nature's creepiest lifeform in history. The hair, the legs, the eyes, the fangs, all meant to strike you down with fear.