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A poison arrow (or other frog) does not have ears per sebut has what is called a tympanum on their head behind each eye. It picks up vibrations and transfers them into the inner part of the frog's head where the rest of the organs of hearing are located. Recall that the frog's "ears" have to work under water, and the "ear" of a frog (or toad) is completely covered by the tympanum. The frog's other hearing organs are behind the tympanum in the inner head. Got links if you want 'em.

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17y ago

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