1. vocal sac (on frog)
2. Vocal sacThe vocal sac is the flexible membrane of skin possessed by most male frogs. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call. The presence or development of the vocal sac is one way of externally determining the sex of a frog in many species. The vocal sac is open to the mouth cavity of the frog, with two slits on either side of the tongue. To call, the frog inflates its lungs.
Read “Vocal sac” on English Wikipedia
Read “鳴嚢” on Japanese Wikipedia
Read “Vocal sac” on DBpedia
Read “Vocal sac” on English Wikipedia
Read “鳴嚢” on Japanese Wikipedia
Read “Vocal sac” on DBpedia
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