 Analysis of shape and trace DNA showed that teeth from both sites belonged to the same orangutan.The consistent method and common source indicated the work of one person on all the specimens, and Dawson was the only one associated with Piltdown II.The authors did not rule out the possibility that someone else provided the false fossils to Dawson, but ruled out several other suspects, including Teilhard de Chardin and Doyle, based on the skill and knowledge demonstrated by the forgeries, which closely reflected ideas fashionable in biology at the time.