Pacific hagfish (Eptatretus stoutii) in a hole at 150 meters depth at the Cordell Bank National Marine Sanctuary in California. (via Linda Snook of NOAA/CBNMS / Flickr) Hagfish are widely considered the most disgusting animals in the ocean, if not on earth. The eel-shaped creatures use four pairs of thin sensory tentacles surrounding their mouths to find food—including carcasses of much larger animals. Once they find their meal, they bury into it face-first to bore a tunnel deep into its flesh. Despite the fact that they seem repulsive, they are undoubtedly unique—and just because animals are [...]