View a demo here. The Bone Clones 3D OsteoViewer is a digital media platform designed to view 3D models of selected Bone Clones® casts on any digital device. This viewer allows for a 360-degree examination of individual skulls as well as a side by side human comparison skull for non-human primates and hominins. Each of the skulls is the same in scale and is horizontally aligned to the comparison skull on the Frankfort plane. Anyone interested in skull morphology, comparative anatomy and hominin evolution will find this App useful in understanding these concepts.