Meet Promachoteuthis sulcus, a bizarre creature straight out of your nightmares. As you can see, this thing looks like it has freakishly human looking teeth. They're actually just flaps of skin, but they're still pretty unnerving! It's a species of promachoteuthid squid and only one specimen has been found to date. It was captured in the Southern Atlantic Ocean at a depth of 2,000m in 2007. Just imagine what else is lurking in our oceans!
