Mountain patch-nosed snake (Salvadora grahamiae grahamiae) at the Phoenix Zoo.
Texas patch-nosed snake (Salvadora grahamiae lineata) at the Phoenix Zoo.
Pearl Island boa constrictor, Boa constrictor sabogae, at Phoenix Zoo.
Colorado desert shovelnose snake, Chionactis occipitalis annulata, at Phoenix Zoo.
Red sided garter snake (Thamnophis sirtalis infernalis) at the Exmoor Zoo.
California red sided garter snake (Thamnophis sirtalis infernalis) at the Exmoor Zoo.
Eastern garter snake (Thamnophis sirtalis sirtalis) at the Exmoor Zoo.
San Francisco garter snake (Thamnophis sirtalis tetrataenia) at the Exmoor Zoo.
An endangered San Francisco garter snake (Thamnophis sirtalis tetrataenia) at the Exmoor Zoo.
Rough earth snake (Virginia striatula) at Wildcare in Noble, Oklahoma.
Karaganda pit viper (Gloydius halys caraganus) at the San Antonio Zoo.
Hungarian meadow viper (Vipera ursinii rakosiensis) at the Budapest Zoo.
Mangrove viper (black phase) (Trimeresurus purpureomaculatus) at the Los Angeles Zoo.
An endangered March’s palm pitviper (Bothriechis marchi) at the London Zoo.
A Madagascar night snake, Madagascarophis colubrinus, at Tsimbazaza Zoo.
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