Watch: Researchers comb the desert for the cryptic Arizona night lizard

The Arizona night lizard (Xantusia arizonae) is a hard creature to find. It appears only in that state—and in just a single county—and they hide inside narrow rock cracks in rugged territory. Despite the name, they’re not nocturnal, but their cryptic behavior makes it hard for researchers to know much about them. Ryan O’Donnell, a research biologist with the Arizona Department of Fish and Wildlife, has been leading a team searching for this unusual lizard, which unlike most reptiles, gives live birth.

For more on this cryptic lizard, watch the video below.