It believe it's the Pythagorean Theorem, named after Pythagoras in ancient Greece 2,500 years ago
Answer:
Environmental instability may have been a factor not only in shaping adaptations but also in contributing to the extinction of some lineages. Environmental variability associated with the extinction of large mammal species has been proposed for the southern Kenya region.
Well from what I know they did use obsidian, they did live in large numbers and did take shelter in the highlands. Hope this helps
Can you give me more information plz