vocal sac

British  

noun

1. zoology either of the loose folds of skin on each side of the mouth in many male frogs that can be inflated and act as resonators

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Example Sentences

See Examples For:

vocal sac

Then, with the help of “a secret neck muscle”, Perry releases from under her chin what looks like a frog’s vocal sac.

From The Guardian ● Jun. 12, 2017

During breeding, the male’s vocal sac, almost as large as the animal itself, is usually the first thing you will spot.

From New York Times ● Apr. 3, 2015

The vocal sac is bright yellow, and the iris is pale gold.

From The Amphibians and Reptiles of Michoacán, México by William E. Duellman

The venters are gray or white, and the vocal sac is nearly black in some species.

From A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope by John D. Lynch

Hylella sumichrasti has been characterized as having no vocal sac, rarely having vomerine teeth, and as having a relatively smooth throat.

From A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico by William E. Duellman

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