Across
- 3. era known as the old stone age
- 4. gatherers Early humans who hunt animals and gather wild plants
- 5. lifestyle Constantly moving place to place
- 7. bridge a strip of land that connects two continents
- 8. age A time when huge ice glaciers
Down
- 1. A scientist that studies prehistoric humans
- 2. era known as the new stone age
- 4. An early ancestor of humans
- 6. painting a form of communication used during the time of no spoken