The behavior of snapping their jaws when hooked gives snappers their name. Snappers have slightly upturned snouts, large mouths, and prominent canine teeth near the front of the jaw. Snappers are nocturnal predators that feed on crustaceans and small fish. When seen on the reef during the day, Dog, Cubera and Mutton Snappers tend to be solitary; Mahogany, Gray and Lane Snappers often gather in small groups; Yellowtail snappers swim in loose aggregations well above the reefs often following divers; while Schoolmasters often form schools, though larger indivduals may be solitary.