Chris Mattison / Great Basin Gopher Snake (Pituophis catenifer deserticola) Joshua Tree National Park, California, USA, May.

Chris Mattison / Great Basin Gopher Snake (Pituophis catenifer deserticola) Joshua Tree National Park, California, USA, May.

Pete Oxford / Southern Pinesnake (Pituophis melanoleucus mugitus) on road, Orianne Indigo Snake Preserve, Georgia

Pete Oxford / Southern Pinesnake (Pituophis melanoleucus mugitus) in forest, Orianne Indigo Snake Preserve, Georgia

MYN / Seth Patterson / Bullsnake (Pituophis catenifer) view from above, Sabal Palm Sanctuary, Cameron County, Lower Rio Grande Valley, Texas, United States of America, North America, October. Meetyourneighbours.net project

Chris Mattison / Cedros gopher snake (Pituophis catenifer insulanus / Pituophis insulanus). Cedros Island, Baja California, Mexico

Daniel Heuclin / Great basin Gopher Snake / Bullsnake (Pituophis catenifer deserticola) controlled conditions, Joshua Tree National Monument, California USA

Daniel Heuclin / Great basin Gopher Snake / Bullsnake (Pituophis catenifer deserticola) controlled conditions, Joshua Tree National Monument, California USA

Donald M. Jones / American Badger (Taxidea taxus) with Bullsnake (Pituophis melanoleucus) prey, National Bison Range, Moise, Montana

Charlie Summers / Bull Snake (Pituophis catenifer sayi) coiled in defensive position ready to strike. Colorado, USA, May.

Pete Oxford / Southern Pinesnake (Pituophis melanoleucus mugitus), native to the southeastern United States

Pete Oxford / Southern Pinesnake (Pituophis melanoleucus mugitus) in pine needles, native to the southeastern United States