Fossil hints at primate origins The bone is just over a centimetre long An ankle bone discovered in central Burma could be evidence of an ancient ancestor common to many of today's primates, including humans. The 45-million-year-old fossil has features that link it to all of the anthropoids, the grouping of human-like species such as apes and monkeys. If correct, this would tie their line of evolutionary descent to Asia and not Africa as some have suggested. The findings appear in the Proceedings of the National Academy of Sciences. The PNAS journal presents a paper on the discovery by Laurent...