Epibulus insidiator, the sling-jaw wrasse, is a spectacular coral reef fish that exhibits an extraordinary ability to protrude its jaws during feeding. This fish can rapidly protrude both upper and lower jaws to an extreme degree, extending the length of the head by 65% to capture evasive prey such as other fishes and small invertebrates. The sling-jaw is a member of the diverse and colorful fish family Labridae (the wrasses) and is closely related to the maori wrasses of the genus Cheilinus. The sling-jaw wrasse is among the most widely distributed coral reef fishes, occurring on coral reefs throughout the tropical Pacific from the Northwest Hawaiian Islands to the Western Pacific, Indian Ocean, and Red Sea.