Claudio Contreras / Texas horned lizard (Phrynosoma cornutum) portrait, Laredo Borderlands, Texas, USA. April

Daniel Heuclin / Red coachwip or Red racer (Masticophis flagellum piceus) eating Sceloporus lizard, Catalina foothill, Arizona, June.

Jim Brandenburg / Desert Spiny Lizard (Sceloporus magister) sunning on rock, Monument Valley National Monument, Arizona

Andrew Snyder / Bocourt's Emerald Lizard (Sceloporus schmidti / smaragdinus) male in breeding colours, held in human hand, Cusuco National Park, Honduras, Central America.

Emanuele Biggi / Eastern fence lizard (Sceloporus undulatus) adult male with iridescent throat, Southern Illinois, USA. April.

Claudio Contreras / Smith's rosebelly lizard (Sceloporus smithi), Playa Morro Ayuta, Oaxaca state, southern Mexico, August

Daniel Heuclin / Checkered garter snake (Thamnophis marcianus) eating Yarrow spiny lizard ( Sceloporus jarrovii) Chiricahua mountains. Arizona, USA. May. Controlled conditions

Daniel Heuclin / Checkered garter snake (Thamnophis marcianus) eating Yarrow spiny lizard ( Sceloporus jarrovii) Chiricahua mountains. Arizona, USA. May. Controlled conditions

Claudio Contreras / Socorro Lizard (Urosaurus auriculatus), Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Ocean,...

Claudio Contreras / Socorro Lizard (Urosaurus auriculatus), Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Ocean,...

Claudio Contreras / Clarion Lizard (Urosaurus clarionensis) female, IUCN Vulnerable, Clarion Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro...

Claudio Contreras / Clarion Lizard (Urosaurus clarionensis) displaying, IUCN Vulnerable, Clarion Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Soc...