Melvin Grey / Side-striped palm pit viper (Bothriechis lateralis) adult, Costa Rica

Lucas Bustamante / Amazon Coffee-Snake (Ninia hudsoni) portrait, Sumaco, Napo, Ecuador .

Chris Mattison / Spotted coffee snake (Ninia maculata) near Turrialba, Cartago Province, Costa Rica

Suzi Eszterhas / Red coffee snake (Ninia sebae) Northern Costa Rica, Central America

James Christensen / Hallowell's Coffee Snake (Ninia atrata), Mindo, Ecuador

Claudio Contreras / Redback coffee snake (Ninia sebae) on rainforest floor, Los Tuxtlas Biosphere Reserve, Mexico, November

James Christensen / Keeled Racer (Chironius carinatus) in a coffee plantation, Colon, Panama

James Christensen / Keeled Racer (Chironius carinatus) in a coffee plantation, Colon, Panama

Michael & Patricia Fogden / Green Palm Viper (Bothriechis lateralis) close-up, partially coiled, Monteverde Cloud Forest Reserve, Costa Rica

Michael & Patricia Fogden / Green Palm Viper (Bothriechis lateralis) camouflaged on palm leaf, Monteverde Cloud Forest Reserve, Costa Rica

Michael & Patricia Fogden / Green Palm Viper (Bothriechis lateralis) coiled around tree branch, Monteverde Cloud Forest Reserve, Costa Rica

Tim Fitzharris / Green Palm Viper (Bothriechis lateralis), Costa Rica