From Uzi Kafkafi:

Re: Human evolution, radically reappraised (March 26): It is amazing that such effort is made based on such a small number of skulls found in archeological excavations. This is a very speculative work. They should compare the variability in archeological excavation with skulls of all tribes of white and black people, people in Oceania, china, and the arctics and monitor their variability before making farfetched extrapolation based on so small data sources contaminated with soil and fossils.

Uzi Kafkafi
Prof. Emeritus, The Hebrew university of Jerusalem
faculty of Agriculture
POBox 12 Rehovot, Israel