Apparently they communicate largely in infrasound, which is inaudible to many people . Even those people distinguish a variety of vocalizations though, including " alarm snort ", " bleating or mewing " ( calves ), " roaring bellow " ( females seeking young ), " raucous cough " ( males courting ), " moaning, snoring, hissing, and flutelike sounds " . [ http : / / library . sandiegozoo . org / factsheets / giraffe / giraffe . htm And after all . . . if that long, long recurrent nerve didn't work, why wouldn't it have degenerated into some vestige ? talk ) 16 : 16, 14 January 2015 ( UTC)
