It’s the largest mammal migration on the planet????Between October and December, 10 million giant fruit bats blot out the sky...????...as they descend on Kasanka National Park in Zambia from deep in the Congo????It’s a relatively tiny patch of forest (about 150 square miles)????The cat-sized bats come to feast on the flourishing fruit trees...????...collectively devouring as much as 6,000 metric tons of fruit each night????The bats spread seeds through their feces when they move on…????...which helps in the regeneration of African forests????Visitors can catch a glimpse of the bats from tree hides 60 feet above ground