1 - 1Oceans: Into the Blue Jan. 13, 2011
1 - 2Deserts: Life in the Furnace Jan. 20, 2011
1 - 3Arctic: Life in the Deep Freeze Jan. 27, 2011
1 - 4Jungles: People of the Trees Feb. 03, 2011
1 - 5Mountains: Life in Thin Air Feb. 10, 2011
1 - 6Grasslands: Roots of Power Feb. 17, 2011
1 - 7Rivers: Friend and Foe Feb. 24, 2011
1 - 8Cities: Surviving the Urban Jungle Mar. 03, 2011
Human Planet: 1x6
Grasslands: Roots of Power
Grasslands feed the world. Over thousands of years, humans have learned to grow grains on the grasslands and domesticate the creatures that live there, propelling our population to almost seven billion people in the process.
