Yakety sacs: laryngeal air sac usage in great apes
International Primate Day
Acoustic analysis of primate air sacs and their effect on vocalization: The Journal of the Acoustical Society of America: Vol 126, No 6
What is a gibbon? — Gibbon SSP
MR images of the laryngeal air sac for the same female chimpanzee... | Download Scientific Diagram
Pouches, pockets and sacs in the heads, necks and chests of baleen whales — Tetrapod Zoology
Siamang (Symphalangus syndactylus) | about animals
Siamang | Smithsonian's National Zoo
ON SACs of the primate retina (A) 3D reconstructions of representative... | Download Scientific Diagram
Yakety sacs: laryngeal air sac usage in great apes
Siamang - Wikipedia
Siamang – Wisconsin National Primate Research Center – UW–Madison
air sac Archives - Chimpanzee Sanctuary Northwest
Origin and function of the yolk sac in primate embryogenesis | Nature Communications
Siamang Call - YouTube
Monkey Mania: Frogs are not the only ones with a striking vocal sac - CGTN
air sac Archives - Chimpanzee Sanctuary Northwest
Happy International Primate Day! - Sacramento Zoo
Los Angeles Zoo - Siamangs are often mistaken for monkeys, but they actually considered smaller-bodied apes. Siamangs are famous for their loud, lilting calls that can be heard more than two miles