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class 1 - 10.30am
class 2 - 1.30pm
2. Then some proto-humans, called Homo erectus, spread from Africa and colonized Europe and Asia as well.
4. Fossilized remains tells us that modern human beings differ from these proto-humans, particularly in brain shape.
8. Then, in the 1980s, came the genetic evidence.
11. The degree of similarity implies that we share a common ancestor that is much younger than two million years old – more like 100,000 years.
12. In that time evolution has diversified our DNA only slightly.