wierd_world on Instagram: "The gulper eel, also known as the pelican eel or umbrella-mouth gulper, is a unique deep-sea fish characterized by its enormous, expandable mouth. ​Key Features ​Massive Mouth: Its most distinctive feature is a hinged, pouch-like jaw that can open wide enough to swallow prey larger than itself. This adaptation is essential for survival in the deep sea where food is scarce. ​Bioluminescence: It has a light-producing organ (photophore) at the tip of its tail that glows p