Bert Willaert / Hognosed Pit Viper (Porthidium nasutum) coiled. Ecuador, South America.

Claudio Contreras / Rainforest hognose pitviper (Porthidium nasutum) Montes Azules Biosphere Reserve, Lacandon Rainforest, Mexico, September

Claudio Contreras / Rainforest hognose pitviper (Porthidium nasutum) Montes Azules Biosphere Reserve, Lacandon Rainforest, Mexico, September

Pete Oxford / Hog nose viper {Porthidium nasutus} West Ecuador Rainforest, captive

Michael & Patricia Fogden / Hog-nosed Pit Viper (Porthidium nasutus) swallowing a Rain Frog (Eleutherodactylus sp) note use of fangs to manipulate frog into mouth, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Porthidium nasutus) swallowing a Rain Frog (Eleutherodactylus sp) note use of fangs to manipulate frog into mouth, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Bothrops nasutus) predating Middleamerican Ameiva (Ameiva festiva) lizard note the use of fangs to manipulate prey into snake's mouth, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Bothrops nasutus) female giving birth to live young, rainforest Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Bothrops nasutus) defensive throat display, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Bothrops nasutus) venomous female with her three young on rainforest floor, Costa Rica

Doug Wechsler / Hog nose viper on rainforest leaf {Porthidium nasutus} Rio Canande, Ecuador