sentences:  He also was a team member of the Kebara Cave Middle Palaeolithic project and was among those who studied and published the Mousterian (ca.60,000 years old) skeleton recovered on site– his own research concentrating on the speech abilities of that individual, proving that his hyoid bone is identical to that of modern humans.At the same time he has studied many samples of human remains dating to the times of the Second Temple and is considered as the leading authority on the Jewish population of ancient Israel.