Narwhal Skull and Tusk 0001

3D Volume Rendering Technique (VRT) reconstruction from CT scans of a Narwhal (Monodon monoceros) skull demonstrating the position of the skull relative to the surrounding transparent soft tissues. Key anatomical structures visible in this image include a partial helical shaped tusk (incisor tooth) protruding from the upper left side of the maxilla. Specimen courtesy of the Narwhal Tooth Expeditions and Research Investigation.