Human evolution species were indeed responsible for most of the Oldowan tools found. They argue that when most of the Oldowan tools were found in association with human fossils, "Homo" was always present, but "Paranthropus" was not. In 1994, Randall Susman used the anatomy of opposable thumbs as the basis for his argument that both the "Homo" and "Paranthropus" species were toolmakers. He compared bones and muscles of human and chimpanzee thumbs, finding that humans have 3 muscles which are lacking in chimpanzees. Humans also have thicker metacarpals with broader heads, allowing more precise grasping than the chimpanzee hand can perform. Susman
Errors of the Human Body Ruzin of Screen Invasion wrote, ""Errors of the Human Body" is elevated by a sublime turn by star Michael Eklund... His agony, particularly in the third act, is brilliantly painful. Despite the screenplay skimming over his character’s supposed scientific prowess, to the film’s moderate detriment, Eklund’s powerful performance is nonetheless tragic and captivating." Michael Treveloni of Film School Rejects noted, "The film is a not just a science-fiction horror story: it is a commentary on the importance of dialog, showcasing the need for communication in its many forms. With Geoff, "Errors" presents the perfect, damaged subject.". At the Fantastic Fest