June 19, 2017 - The African Serengeti has an unusual source of nutrients in its waterways - two million pounds of rotting flesh. Every year over a million wildebeests make a 1000-mile-long loop between Tanzania and Kenya. They encounter deadly threats including predators like crocodiles and big cats, but there's one other serious danger - drowning. An average of 6,250 are swept away while crossing rivers. That's equivalent to the mass of 10 blue whales. Their bodies remain in the rivers and slowly decompose, returning vital nutrients like phosphorous back into the environment.
Click here to read more about the Serengeti and wildebeest.
