In this video, Heather Duncan, DVM, DAVDC, founder and CEO of Crown Veterinary Dental Specialists in Charlotte, North ...

“Double tusked narwhals are extremely uncommon,” he told IFLScience. “Both male and female narwhals possess two maxillary ...

Mice have four incisors, two maxillary (upper) incisors, and two mandibular (lower) incisors. Canine teeth and anterior premolars are absent—the toothless space between the incisors and molar ...