File:Sperm whale frontal sac surface close-up.jpg

Original file (609 × 721 pixels, file size: 187 KB, MIME type: image/jpeg)

Summary

Description	English: A section of the posterior wall of the frontal sac of the sperm whale.
Date	6 April 2013, 16:34:26
Source	Animal Orientation and Navigation pg 404
Author	NASA

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