英语词汇“vocal sac”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	vocal sac
释义	vocal sac noun Zoology (In many male frogs) a loose fold of skin on each side of the mouth, which can be inflated to produce sound.Sex was determined from the presence or absence of vocal sacs and thumb pads.... In Rhinoderma darwinii, males retain the tadpoles in their vocal sacs until the young metamorphose. There are dads who incubate their babies in their mouths, their vocal sacs, and in pouches.
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