The Copperhead, a pit viper, widespread throughout the United States, is responsible for most of the venomous bites. Copperhead bites are painful, but rarely pose a serious threat to human life. The Copperhead typically ranges from Massachusetts to Nebras
Credit: Alamy Of England’s three snake species, adders are the most often seen, in forests and on heathland mainly in the south-west and north-east. Spot them in early spring when they first emerge from hibernation.