Key Ideas

Think about the following questions as you watch the video

1. 01:12 How do the plants that humans choose to cultivate benefit from human attention?
2. 08:56 Why did people like the Natufians feel pressure to begin farming?
3. 09:24 What does David Christian mean when he says that climate change made agriculture possible and overpopulation made it necessary?
4. 02:04 What is symbiosis?
5. 03:33 What does David Christian mean when he says that plants were changed by agriculture but that humans were changed, too?
6. 04:32 When and where did farming begin?
7. 05:09 Where did farming develop next?
8. 05:55 Why did agriculture develop in so many places at about the same time?
9. 06:20 Why couldn't humans just migrate to relieve population at the end of the ice age, just as they had always done?
10. 07:12 How did the world's climate change at the end of the last ice age?
11. 07:56 How did the ways Natufians lived differ from how foragers lived?