The eSkeletons Project website is devoted to the study of human and primate comparative anatomy. It offers a unique set of digitized versions of skeletons in 2-D and 3-D in full color, animations, and much supplemental information. The user can navigate through the various regions of the skeleton and view all orientations of each element along with muscle and joint information. eSkeletons enables you to view the bones of both human and non-human primates ranging from the gorilla to the tiny mouse lemur. All of the large apes are represented as well as other species from different parts of the world. Many of these primates are rare or endangered species.