Flying animals will hang out there from time to time, but having been to dozens of slots I believe it's fair to say they don't "live there." I've seen tadpoles in a flooded one, a bat in a dry one, and birds in a few, but most of the time I just see a handful of the bugs that I see everywhere in Utah/Arizona.

Usually nothing. These canyons are periodically flash-flooded by average rainfall upstream. The only things you'll find alive are animals that fly, got stuck, or are just passing through.

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