The first fossil found consisted of an incomplete skull with a skull cap and a broken mandible with some teeth. Based on the detail of the teeth, the molars suggest that the animal could rend and tear flesh. Wear, in the form of scrapes on the molars, indicated that "Pakicetus" ground its teeth as it chewed its food. Because of the tooth wear, "Pakicetus" is thought to have eaten fish and small animals. The teeth also suggest that "Pakicetus" had herbivorous and omnivorous ancestors.