Viviparous lizard

About

The Viviparous lizard is the highest-living lizard in the Carpathians. It inhabits all Carpathian countries—from valleys to polonynas and high-altitude swamps, where other lizards cannot survive.

The secret lies in its reproduction method. Most lizards lay eggs, which would not develop in the cold mountain soil. Carpathian Viviparous lizards carry their eggs inside, and the young appear ready for independent life, most often in mid-summer. This is why the species is called viviparous.

The lizard is small, usually measuring 15–18 cm including the tail. Its back is brown or bronze with dark stripes and spots, while the belly of males is yellow-orange with black dots, and females have a lighter belly. It basks on tussocks, stumps, and stones at the edges of swamps, wet meadows, clearings, and blueberry thickets, and quickly hides in moss or grass from danger, even diving into water.

The Viviparous lizard eats spiders, small insects, caterpillars, and slugs. It hibernates in burrows and under roots, waking up as soon as the ground warms up.

The Viviparous lizard is not listed in the Red Data Book of Ukraine; it is completely safe for humans.

Where in the Carpathians

The map shows where naturalists recorded the species (GBIF, CC0 and CC BY records), not every place it lives. The Ukrainian Carpathians are less studied, so a blank area does not mean the species is absent.

Countries

Ukraine · Slovakia · Romania · Poland · Czechia

Mountain ranges

Bieszczady, Rivna Polonyna, Chornohora, Watershed Ridge, Krasna Polonyna, Gorgany, Maramureș Mountains, High Tatras, Bihor-Vlădeasa Mountains, Skole Beskids

Altitude belts

Beech forests (600–1200 m) · Conifer forests (1200–1600 m)

When to see it

From naturalists’ observations in the Carpathians (iNaturalist, research grade): the darker the cell, the more often the species is seen that month.

Protection and rules

Not listed in the Red Data Book of Ukraine.

Red Data Book of Ukraine

FAQ