~2.0 to 1.8 million year-old archaeological site demonstrates that early humans had the skills and tools to cope with ecological change — ScienceDaily
Olduvai (now Oldupai) Gorge, known as the Cradle of Humankind, is a UNESCO World Heritage...
Olduvai (now Oldupai) Gorge, known as the Cradle of Humankind, is a UNESCO World Heritage...