Subject:  08/95 Frog diagram.JPG
Author:  Roberto Osti
Uploaded By:  CHansen598
Date:  7/7/1995

File:  narin05.JPG (62289 bytes) 
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From the August 1995 issue of SCIENTIFIC AMERICAN

Frog Communication

by Peter M. Narins

This 640 x 437 pixel image shows that apart from allowing the frog to hear through its sides (purple area), the internal airways (pink) may help protect the ears from being damaged by the loudness of the frog's own calls. The sound, after being radiated by the vocal sac, reaches the eardrum both by internal routes and from the outside, so that its effects on the eardrum largely cancel out.