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Acoustic analysis of primate air sacs and their effect on vocalization: The Journal of the Acoustical Society of America: Vol 126, No 6
ON SACs of the primate retina (A) 3D reconstructions of representative... | Download Scientific Diagram
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Siamangs have large gular sac (throat pouch) that can be inflated to the size of its head, allowing it to make loud, resonating calls or songs : r/Awwducational
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