![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 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](https://external-preview.redd.it/a9y2y9MQdHj-U-f1qnlhugNSc-BnZ483wEB00vhIwic.png?width=640&crop=smart&format=pjpg&auto=webp&s=892d0db2546aaa74cf21223e88d4ca8f5f83185f)
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
![Portrait of a Siamang monkey swinging in a tree, Indonesia — animals themes, animals portrait - Stock Photo | #462905032 Portrait of a Siamang monkey swinging in a tree, Indonesia — animals themes, animals portrait - Stock Photo | #462905032](https://st.focusedcollection.com/9264440/i/1800/focused_462905032-stock-photo-portrait-siamang-monkey-swinging-tree.jpg)
Portrait of a Siamang monkey swinging in a tree, Indonesia — animals themes, animals portrait - Stock Photo | #462905032
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