Tag Archives: AMH

Rare human Y-chromosome found to have a common ancestor pre-dating AMH

Analysis of an extremely rare African American Y chromosome pushes back the time of the most recent common ancestor for the Y chromosome lineage tree to 338,000 years ago and pre-dating the assumed arrival of AMH by some 100,000 years. Continue reading

Advertisements
Posted in AMH, Ancestors, Evolution | Tagged , , , | Leave a comment

The origins of hominins eating meat and plants

One recent paper dates the eating of grasses by Australopithecus bahrelghazali to about 3 -3.5 million years ago ( about 1 million years earlier than previously thought) while another paper dates regular meat eating to about 1.5 million years ago. Continue reading

Posted in AMH, Ancestors, Origins of meat eating, Origins of plant eating | Tagged , , , , | Leave a comment

What led humans to counting and when?

I speculate that the need to communicate to others lies not only behind speech but also behind the development of counting. I further speculate that the increasing complexities of co-operation and their requirements for communication was what drove the parallel – and inter-linked – development of speech and numerology starting some 150,000 years ago. Continue reading

Posted in AMH, Ancestors, Evolution | Tagged , , , , , , , | 4 Comments