When Dr. Richard Leakey was interviewed for finding a fossil in an African valley, that was a link(anthropological), showing that a type of man existed there,...they asked him, 'Were they toolmakers?' Agricultural?..Did they use metals?..etc'...he answered them saying, 'All I can say, for sure, is I found the bone here'. I don't know why he has six 'advisers', maybe the others didn't need as many...but that is just a guess......but he has them!