Zootoca vivipara, commonly known as the common lizard or viviparous lizard, is a small reptile found across Europe and parts of Asia. This species is notable for its ability to give birth to live young, a rare trait among lizards. Typically, they inhabit grasslands, heathlands, and woodlands, preferring moist environments. These lizards are characterized by their slender bodies, which can reach lengths of up to 20 centimeters. Their coloration varies, often featuring shades of brown, green, or gray, with darker stripes or spots. Zootoca vivipara is an important part of its ecosystem, serving as both predator and prey.