throat pouch
Frog's inflatable sac
A throat pouch is a loose, expandable area of skin beneath the chin or on the neck of certain animals.
In birds like pelicans and frigatebirds, it serves to catch fish or attract mates through dramatic inflation.
Frogs and toads have throat pouches that amplify their calls.
In humans, the term informally describes sagging skin under the chin—what's also called a wattle or double chin.
- pelicanPouch-throated waterbird
- dewlapHanging neck fold
- wattleHanging throat skin
- inflatableExpandable by air
- air sacRespiratory membrane pocket
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