Juergen Freund / Researchers Guido and Katja Westhoff work in a mobile lab in the bush. To handle the deadly Common death adder (Acanthophis antarcticus) Guido puts the head and upper portion of the snake in a plastic...

Juergen Freund / Researchers Guido and Katja Westhoff catching a highly venomous Common death adder (Acanthophis antarcticus) found 10 minutes into their group's evening road collection. The death adder ranks 9th out...

Danny Green / 2020VISION / Adder (Vipera berus) coiled, basking on moss in the spring sunshine, Staffordshire, England, UK, April. Photographer quote: "OK so snakes are perhaps not as sexy as seals or foxes but I just can't get...

Robert Valentic / Barkly death adder (Acanthophis hawkei) juvenile, Barkly Stock Route, Northern Territory, Australia. May.

Jen Guyton / Night adder (Causus defilippi) Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.

Jen Guyton / Night adder (Causus defilippi) on white background. Gorongosa National Park, Mozambique. Controlled conditions.

Jen Guyton / Night adder (Causus defilippi) basking on a rock after light rain. from the Greater Gorongosa Ecosystem, Mozambique.

Jen Guyton / Snouted night adder (Causus defilippi) Greater Gorongosa Ecosystem, Mozambique. Controlled conditions.

Jen Guyton / Nght adder (Causus defilippi) basks on a rock after light rain. Greater Gorongosa Ecosystem, Mozambique,

Emanuele Biggi / Horned adder (Bitis caudalis) waiting for passing prey in the Namib Desert, Brandberg, Namibia

Tony Phelps / Puff Adder (Bitis arietans) hunting at night. Little Karoo, Western Cape, South Africa.

Juergen Freund / Researcher Guido Westhoff working in a mobile lab in the bush. To handle the highly venomous Common death adder (Acanthophis antarcticus) he puts the head and upper portion of the snake in a plastic t...