Add Yahoo as a preferred source to see more of our stories on Google. The red hind grouper produces sounds associated with courtship, territoriality, or mating. Red hind groupers are one of around 500 ...

The name is not very appealing: Grunt. • One of the most common fish in the Gulf of Mexico is saddled with one of the worst names, right up there with dogfish or pigfish. • But to dismiss the grunt as ...

A species of fish makes grunting sounds by grinding its teeth. The French grunt fish (Haemulon flavolineatum; pictured) is thought to groan in distress by rubbing together its pharyngeal jaws, a ...