Grasslands

S1 E5: Once overlooked, we now know that grasslands have a hidden power. Not only can they host the greatest gatherings of life on Earth, but they could even heal our planet. Key species, from the wildebeest of the Serengeti to the bison of the North American prairies, can revive forgotten habitats. Healthy grasslands could be more resilient carbon sinks than forests, and even slowing climate change.