Africa

Bird snake

Boomslang

Burrowing asp

Gaboon viper

Mamba

Mole viper

Natal black snake

Puff adder

Asia

Asiatic pit vipers

King cobra

Krait

Malaysian pit viper

Red-necked keelback

Russell’s viper

Australia

Death adder

King brown snake

Red-bellied black snake

Taipan

Tiger snake

Central and South America

Bushmaster

Cantil pit viper

Coral snake

Fer-de-lance

Palm pit viper

Rattlesnake

Europe

Adder

Asp viper

Blunt nose viper

Nose-horned viper

Ottoman viper

Indo-Pacific

Sea kraits

Sea snakes

Middle East

Burrowing asp

Egyptian cobra

Horned or desert vipers

Mole vipers

Natal black snake

Palestinian viper

Saw-scaled viper

Sinai desert snake

North America

Copperhead

Coral snakes

Cottonmouth (water moccasin)

Rattlesnake (eg, diamondback, sidewinder, timber, prairie, Mojave)