TED Talks
Ted: Ted Ed: From the Top of the Food Chain Down: Rewilding Our World
Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem...
Curated OER
National Park Service: Southeastern Prehistory: Paleoindian Period
Paleoindians were great wanderers, traveling across the continent to the southeast. Read about the archaeological findings that give clues about their culture there. Be sure to click on the information on carbon dating to help understand...
CK-12 Foundation
Ck 12: Earth Science: History of Cenozoic Life
[Free Registration/Login may be required to access all resource tools.] An overview of life of the Cenozoic Era.