7. Promachoteuthis Sulcus
Look at those teeth! Although some will say it’s Photoshop, this recently discovered squid species has a similar mouth and teeth as a human being (which will probably give you some weird nightmares tonight). In fact, the teeth are circular folded lips, which help the creature catch its prey before chopping it really well. But don’t be deceived! The size of these guys only reaches one inch long and, so far, only one 25 mm long specimen was captured, back in 2007.