The conclusions of Grant are not really conclusions but speculation. Of the 700 bone fragments, 591 were not identified at all! Only 109 fragments were identified as possibly male human fragments. What about the majority of the fragments? Are any pieces female? Are any consistent with a Southeast Asian Mongoloid? Grant has based his conclusions on a few femoral fragments and one scaphoid fragment. Now I don't know what part of the body these come from, but common sense would say it is foolish if not impossible to draw these conclusions based on less than 1% of the bone fragments.