Introduced by John Maddox.
'By two millions years ago there was a behavioural system (in protohumans) that seems to have involved hunting and/or scavenging of substantial quantities of meat and this was being brought back to central locations. This meat was presumably to feed infants and for sharing amongst adults in the sort of way that we normally associate with man.'
Professor Glynn Isaac , from the University of California. reflects on how archaeologists deduce the social structure of the early hominids from the distribution of bones and stone artefacts.
The anatomical aspects of evolution are discussed by Professor Phillip Tobias , from the University of Witwatersrand. South Africa, who is finding exciting new material at Sterkfontein.
Editor THELMA RUMSEY