Claudio Contreras / Gulf coast ribbon snake (Thamnophis proximus orarius) Laredo Borderlands, Texas, USA. April

Claudio Contreras / Checkered garter snake (Thamnophis marcianus) Laredo Borderlands, Texas, USA. April

Matthias Breiter / Red-sided Garter Snake (Thamnophis sirtalis parietalis) group mating after hibernation, Narcisse, Manitoba, Canada

Rolf Nussbaumer / Head portrait of Gulf Coast Ribbon snake (Thamnophis proximus orarius) covered in duckweed and swimming, with tongue protruding, Fennessey Ranch, Refugio, Corpus Christi, Coastal Bend, Texas Coast, U...

Rolf Nussbaumer / Checkered Garter Snake (Thamnophis marcianus marcianus) coiled with tongue protruding. Fennessey Ranch, Refugio, Corpus Christi, Coastal Bend, Texas Coast, USA

Sebastian Kennerknecht / San Francisco Garter Snake (Thamnophis sirtalis tetrataenia) on pond vegetation, Pescadero, California

Rolf Nussbaumer / Checkered Garter Snake {Thamnophis marcianus marcianus} adult swimming, Rio Grande Valley, Texas, USA, May

Rolf Nussbaumer / Checkered garter snake {Thamnophis m marcianus} on dry cracked mud, Texas, USA.

Tim Fitzharris / Common Garter Snake (Thamnophis sirtalis) with extended tongue, very common snake, North America

Rolf Nussbaumer / Mass of juvenile Gulf coast ribbon snakes {Thamnophis proximus orarius} Texas, USA

David Perpinan / Necrosis / tissue dying in hemipenis of captive garter snake (Thamnophis sirtalis) small repro only

Karine Aigner / Eastern yellow-bellied racer (Coluber constrictor flaviventris), eating a checkered garter snake (Thamnophis marcianus). Texas, USA, July.