They fill their prodigious throat sacs with low meditation umbles.
In addition some species of gibbon ape and the walrus have a throat sac.
It rolls out from my throat sac easy enough, even if I get embarrassed hearing it sometimes.
My throat sac must have fluttered in confusion, making burbly sounds.
But they both seem to like it when I puff out my throat sac and give a low, booming umble-song.
Both sexes have a throat sac just above breast bone.
The throat sac is also used to make various noises at that time.
To have burst my throat sac before I embarked with a mad alien to call up the dead.
He put the muzzle against the Groaci's pulsating throat sac.
His cheeks puffed out like the throat sac of a chirping frog.