Size comparison (IMAGE) University of Texas at Austin Caption A graphic comparing the size of Anchitheriomys buceei with an average North American Beaver and an average man in the United States. Outlined in white are fossil bones in the UT collections, including a partial skull and jaw, and portions of the radius and ulna that make up the elbow. Credit UT Austin Jackson School of Geosciences/ National Center for Health Statistics/ USDA Forest Service Usage Restrictions Include photo credit License Original 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.