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11 reptile species in Yellowstone National Park
Thamnophis elegans
Pituophis catenifer
Sceloporus graciosus
Charina bottae
Crotalus viridis
Coluber constrictor
Phrynosoma hernandesi
Thamnophis sirtalis
Masticophis taeniatus
Pituophis melanoleucus
Sceloporus clarkii
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