Skulls of white-tail deer and bottlenose dolphin (IMAGE)

Experimental Biology

Skulls of white-tail deer and bottlenose dolphin

Caption

3D digital reconstructions from CT scans showing bisected skulls of a white-tail deer (Odocoileus virginianus; top) and bottlenose dolphin (Tursiops truncatus; bottom) with the bony nasal passage highlighted in blue. The nasal passage is parallel to the snout in most terrestrial mammals (e.g., deer) whereas the nasal passage has become reoriented away from the hard palate in cetaceans.

Credit

Rachel Roston.

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