Chauna chavaria (Crested Screamer): top view cutaway (3D recon)

3D reconstruction of the modern bird Chauna chavaria, a cousin to ducks and geese, with the top portion of the skull digitally cut away revealing the highly pneumatic nature of the braincase of modern birds. Specimen is approximately 9 cm long. (Sample courtesy of Mr. Dave Dufeau, University of Texas at Austin).

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