Video of Mexican Free-tailed Bats emerging from Bracken Cave. There's over 20 million in this cave, making it the largest bat colony in the world. It takes four hours for them to stream out like this. Before the night is over they will eat 200 TONS of bugs.
This is one in a series of drawings I did for this month's Believer Magazine by McSweeney's. The series is titled, "If Cowboys Were Smaller." I think tiny cowboys would do pretty well riding armadillos as long as they didn't try to cross the road on one.