Nick Garbutt / Sumatran pit viper (Trimeresurus sumatranus) juvenile on tree trunk, in tropical rainforest. Danum Valley, Sabah, Borneo, Malaysia.

David Tipling / Common European adder (Vipera berus) two males fighting over a female. Holt, North Norfolk, England, UK. April

David Tipling / Common European adder (Vipera berus) two males fighting over a female, Holt, North Norfolk, England, UK. April

David Tipling / Common European adder (Vipera berus) two males fighting over a female, Holt, North Norfolk, England, UK. April.

Fabio Pupin / Meadow viper, (Vipera ursinii), basking in alpine meadow, Apennines, Italy, September . Non-ex.

Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), sidewinding on dune, Namib desert, Namibia, February . Non-ex.

Gary Bell/ Oceanwide / Common Lionfish (Pterois volitans) hunting Basslets (Pseudanthias sp), Christmas Island, Australia

Gary Bell/ Oceanwide / Blackfoot Firefish (Parapterois heterurus) at night, Anilao, Philippines

Gary Bell/ Oceanwide / Zebra Lionfish (Dendrochirus zebra), Great Barrier Reef, Australia

Robert Valentic / Rough-scaled death adder (Acanthophis rugosus) waving tip of tail as a lure to entice prey within striking range. Mount Isa, Queensland Australia.

Georgette Douwma / Shortfin lionfish (Dendrochirus brachypterus). Lembeh Strait, North Sulawesi, Indonesia.

Daniel Heuclin / Horned viper (Vipera ammodytes) in natural setting, Turkey.