Challenge #1

1. Homo habilis is thought to be the ancestor of the lankier and more sophisticated Homo ergaster.

2. Homo erectus would bear a striking resemblance to modern humans, but had a brain about 74% percent of the size of modern man.

3. Control of fire by early humans is achieved 1.5 Ma by Homo ergaster.

4. Homo ergaster reaches a height of around 1.9 metres (6.2 ft). Evolution of dark skin, which is linked to the loss of body hair in human ancestors, is complete by 1.2 Ma.

5.  Homo antecessor may be a common ancestor of humans and Neanderthals

6. At present estimate, humans have approximately 20,000-25,000 genes and share 99% of their DNA with the now extinct Neanderthal,and 95-99% of their DNA with their closest living evolutionary relative, the chimpanzees.

7. Y-chromosomal Adam lived in Africa approximately 338,000 years ago, according to a recent study. He is the most recent common ancestor from whom all male human Y chromosomes are descended.

8. Mitochondrial Eve is a woman who lived in East Africa. She is the most recent female ancestor common to all mitochondrial lineages in humans alive today.