Some adders are in the viper family, but they are in different genera, such as the common adder or black adder of Europe (Vipera berus) and the puff adder of Africa (Bitis arietans). The death ...

The adder, or common viper, is Britain's only venomous snakeCredit: Getty The adder, also known as the common viper (Vipera berus), is Britain's only venomous snake and also the most likely to be ...

The Adder (Vipera berus) is native to the UK but has been declining across the UK in recent times. Known as the UK's only venomous snake, it can grow to around 70cm with a distinctive zigzag ...