The teeth, found in Germany, provoked one observer to suggest human history may need to be rewritten. Some experts, however, remain very skeptical. In a paper shared at the social networking site ResearchGate, Herbert Lutz and his team say they discovered “a new great ape with startling resemblances to African members of the hominin tribe.” The "plausible age” of the fossils — an upper left canine tooth and an upper right first molar — is 9.7 million years, they say. If confirmed, that would make the teeth around 6 million years older than fossils for the early-human, African ancestor Australopithecus...