Sir Arthur Keith was a protege of Charles Darwin.?

Do you realize when The Origin of Species was written? It was in 1859. If you had said to Sir Keith that someday we would be able to use devises like computers, cell phones, jets, the space shuttle, he would have probably said that it was impossible to know about these things, also. Science is not static. Knowledge has increased at a rate that could have not be foreseen at that time. We have learned an enormous amount since 1859.