| A | B |
|---|
| The amount of human history people lived this way. | Most of it |
| What they ate. | Collected plants and hunted wild animals |
| Where did they live. | They migrated from place to place. |
| Why they migrated. | They moved to where the food was. |
| Where these groups can still be found today. | Amazon rain forest and New Guinea. |
| 2 ways they affected their environment,. | Hunted bison and burned prairies to prevent growth of trees. |
| This may have contributed to the disappearance of some species of large mammals. | Overhunting |
| Some large mammals that may have disappeared due to overhunting. | giant sloths, giant bison, mastadons, cave bears, saber-toothed cats |
