In a study published in the September issue of The American Naturalist, A. Kristopher Lappin (Northern Arizona University) and Jerry F. Husak (Oklahoma State University) use the eastern collared ...

Continuing along the track of a previous article, let me introduce you to another interesting lizard occurring in our area! After discussing the horned lizard in a prior article, and to give equal ...

A male collared lizard, Crotaphytus collaris, surveyed its territory from atop a small boulder. I approached to get a better look, but it moved to hide in a clump of grass. I approached again, and it ...