Sound Production
The smallest frogs must consume lots of energy to produce calls. In addition, vocalizing muscles can make up 15% of a male spring peeper’s body mass, while the same muscles are only 3% of females. Frogs produce sound from the air sac below their mouth that from the outside, is seen to inflate and deflate. Air from the lungs is channeled to the air sac, which resonates to make the sound louder. The larynx is larger and more developed in males, though not significantly different from females.
Read more about this topic: Frog Hearing And Communication
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