The European adder, also known as Vipera berus, is a common snake found across Europe and parts of Asia. It typically measures between 60 to 90 centimeters in length and is recognizable by its distinctive zigzag pattern along its back. This snake prefers habitats such as woodlands, heathlands, and grasslands, often basking in the sun. The European adder is non-aggressive and primarily feeds on small mammals, birds, and amphibians. It is the only venomous snake in the UK, but its bite is rarely fatal to humans. The species is known for its ability to adapt to various environments, making it a resilient reptile.