North America

  1  Baja California coachwhip Maximum length: 184.5cm. Probably the most commonly sighted snake in Baja California by ordinary people.

  1  Mexico’s deadly cottonmouth relative In Mexico, it sometimes feels like there’s a venomous snake waiting around every corner.

  1  Common garter snake Maximum length: 137.2cm. Range: virtually the entire USA, most of southern Canada. A tiny population

  1  Found only in Oregon and California The aquatic garter snake (Thamnophis atratus) is a harmless species of the

  1  Master of rocky slopes The rock rattlesnake (Crotalus lepidus) is a moderately dangerously species found in the southern

  1  Mexican west coast rattlesnake Maximum length: 204.5cm. This species does exactly what it says on the label. The

  1  The most northerly-dwelling boa Boas are normally associated with dense, green rainforests in pictures, but there’s one that

  1  The strongest US river snake The northern watersnake (Nerodia sipedon) is an ultra-common species of the eastern USA,

  1  A rarely seen nocturnal species In the USA, the common garter snake is the signature serpent of moist

  1  The desert highway rattlesnake If you’re driving down an Arizona desert highway, with excellent views of the mountains