Monfort Bat Cave is home to the largest colony of bats in the world, and they aren't the teeny-tiny kind, either. These are Geoffroy's rousettes, scientifically classified as fucking megabats. Rousettes are fruit bats, which means they don't drink blood (at least, not with any witnesses around), but the fact that there are between 1.8 million and 2.3 million of them is enough to make even the underdwellingest mutant uncomfortable.
Josh Aggars / Flickr
Only half the poop you see left behind is guano.
The farmers of the surrounding areas aren't particularly fond of the cave -- which is a conservation area -- but that doesn't worry the owner of the property, who is actually planning to build additional bat caves to deal with the current overcrowding issues. It's so full that some of the bats have to sleep on the ground outside the cave, which in turn attracts hordes of predatory snakes and rats, which means nobody within five miles of that goddamn cave is going to get any sleep.
Have you ever wondered whether a multi-million-member flock of bats taking flight looks like the end of days? Well, you're in luck, because here is a picture of one of those things:
That's Kasanka, Zambia, where an estimated 10 million to 15 million fruit bats migrate from late October to December, stripping bare more than a billion fruit trees as they pass. These guys don't have a sweet cave to sleep in during their migration, so they just land on trees, bushes, and really any surface that happens to be available to them. This unholy bat-blizzard is the largest mammalian migration in the world, easily outperforming the second-largest mammalian migration -- of the wildebeest in the Masai Mara -- and looking a thousand times more metal in the process.
Hell Bent For Leather Wings