Bracken Cave, Texas (USA) is home to the largest bat colony in the world. From March to October, 20 million Mexican free-tailed bats live and breed here. To put the number in perspective; it takes the bats about 4 hours to leave the cave every evening in an orderly fashion. Camera: Nikon D50. Lens: Nikon DX 18-70mm f/3.5-4.5G.
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Featured in International Showcase: January, 2016.