SocietyCentral Africa's fruit bat migration 06:43This browser does not support the video element.Society08/04/2017August 4, 2017In Africa's greatest mammal migration, around 10 million fruit bats travel from Congo to Kasanka National Park in Zambia every year. The species is under threat: they're hunted in Congo, and their forest habitat in Zambia is shrinking.Copy linkAdvertisement