Bernard Castelein / Malagasy Giant Hognose Snake (Leioheterodon madagascariensis) flicking tongue, Daraine, Madagascar

Bernard Castelein / Malagasy Giant Hognose Snake (Leioheterodon madagascariensis), Daraine, Madagascar

Bernard Castelein / Malagasy Giant Hognose Snake (Leioheterodon madagascariensis), Daraine, Madagascar

Konrad Wothe / Blonde Hognose Snake (Leioheterodon modestus) near Morondava, Madagascar, Africa

MYN / Brady Beck / Eastern hognose snake (Heterodon platirhinos) coiled, Scotland County, North Carolina, USA, May, meetyourneighboursproject.net

Daniel Heuclin / Western Hognose Snake (Heterodon nasicus) tasting air with its tongue. Endemic to western North America and Mexico.

Daniel Heuclin / Western Hognose Snake (Heterodon nasicus), studio shot against white background. Endemic to western North America and Mexico.

Pete Oxford / Southern Hognose Snake (Heterodon simus), native to the southeastern United States

Michael D. Kern / Western hognose snake (Heterodon nasicus nasicus) albino, captive, from USA

Murray Cooper / Rainforest Hognose Viper (Porthidium nasutum) coiled on tree trunk, Ecuador

Shattil & Rozinski / Western hognose snake {Heterodon nasicus} feigning death to avoid predation, Colorado, USA

Shattil & Rozinski / Western hognose snake {Heterodon nasicus} Colorado, USA