Monkey Teeth (IMAGE) Keck School of Medicine of USC Caption Tiny molar teeth of the parapithecid monkey Ucayalipithecus from the Oligocene of Perú Credit Erik Seiffert Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.