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Frog with a very distinctive ear | by picaday
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Frog with a very distinctive ear

Frogs can hear using big round ears on the sides of their head called a tympanum. Tympanum means drum. The size and distance between the ears depends on the wavelength and frequency of a male frogs call. On some frogs, the ear is very hard to see!

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Taken on April 28, 2013