Wildebeest and wolves: The secret weapons against climate change
Getty ImagesWhen scientists examined the effect just nine groups of animals have on the climate the results were startling. So what would happen if we did more to protect them?More than a million wildebeest roam across East Africa's vast Serengeti grassland. Their annual migration is one of the largest movements of animals on the planet. Their hooves churn up the dirt and hungry mouths devour huge quantities of plant life as they travel.There weren't always this many though. And the story of this... Читать дальше...