Cuvier's beaked whale
"Teuthowenia megalops" are preyed upon by predatory fish like the blue shark ("Prionace glauca") and swordfish ("Xiphias gladius"). They also constitute a major part of the diet of cetaceans like the long-finned pilot whale ("Globicephala melaena"), bottlenose whale ("Hyperoodon ampullatus"), sperm whale ("Physeter macrocephalus"), and Cuvier's beaked whale ("Ziphius cavirostris").