Across
- 3. (Lived 100,000 years ago)
- 6. (Middle Stone age)
- 7. (Living on trees)
- 8. earliest period in time)
- 9. (New stone age)
Down
- 1. (Earliest evolution)
- 2. (Living on trees)
- 4. (Lives 2.6 million years ago)
- 5. (Where humans were first found)
- 10. (Lived 1.8 million years ago)