Jeff Rotman / Irula Snake Tribe member holding vials of snake anti-venom for Viper, Krait and Cobra bites. Southern India.

Daniel Heuclin / White-lipped / Green tree viper (Cryptelytrops albolabris) captive, from SE Asia

Tony Phelps / White-Lipped palm viper {Trimeresurus / Cryptelytrops albolabris} captive, from SE Asia

Thomas Marent / Eyelash Viper (Bothriechis schlegelii) with yellow coloration, coiled on branch, Cahuita National Park, Costa Rica

Pete Oxford / Eyelash Viper (Bothriechis schlegelii) venomous, arboreal, Esmeraldas, Ecuador

Michael & Patricia Fogden / Eyelash Viper (Bothriechis schlegelii) gold morph camouflaged among palm fruits, rainforest, Costa Rica

Michael & Patricia Fogden / Eyelash Viper (Bothriechis schlegelii) showing loreal pits for detecting heat, rainforest, Costa Rica

Michael & Patricia Fogden / Eyelash Viper (Bothriechis schlegelii) gold morph lying in wait on Heliconia (Heliconia imbricata) to strike at Rufous-tailed Hummingbird (Amazilia tzacatl) rainforest, Costa Rica

Tony Phelps / White lipped palm viper in tree {Trimeresurus albolabris} Thailand

TIM MARTIN / Palm viper on tropical dry forest floor, Guanacaste, Costa Rica

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

Paul Hobson / Eyelash viper (Bothriechis schlegelii) on branch in rainforest. Costa Rica. 2018.