Until 30 000 bp there was always a variety of hominin species around
The big question: How did we, Homo sapiens sapiens, come to be
the only hominin species left in the world today?
Two competing hypotheses:
o Complete Replacement or “Out of Africa”
o Regional Continuity
Complete Replacement, or “Out of Africa” Hypothesis
1. AMH evolved in Africa between 250 and 150,000 years ago
2. After 100,000 bp, they spread out from Africa.
3. Between 70,000 and 30,000 bp, they replaced all other humans in
the world (with very little interbreeding). 4. Therefore, everyone’s mtDNA could trace back to a single
woman who lived in Africa during this time:
Our great, great, great, great, gre