The Expandable Gulper Eel
This bizarre eel’s most notable feature is its enormous mouth, capable of opening wide enough to swallow prey larger than itself. Its black, whip-like body stretches up to six feet long, tapering to a glowing tail tip used as a lure. Despite its fearsome appearance, the gulper eel feeds primarily on small crustaceans and cephalopods, using its expandable stomach to maximize feeding opportunities.