Fauna of Scotland
Only six amphibians and four land reptiles are native to Scotland. The amphibians include three species of newt: the great crested, of which fewer than 1,000 individuals survive; the smooth, and the palmate. The other amphibians are the common toad, the natterjack toad, found in only four locations in the south-west, and the common frog. A single alien amphibian is known in Scotland, the Alpine newt, a recent escapee confined to the Edinburgh area.
Marbled newt
Marbled newts live throughout most of France, and northern Spain west to the top third of Portugal. They have a slight overlap with the pygmy marbled newt ("T. pygmaeus"), which take over southern Spain. Marbled newts are absent from most of the Pyrenees because of dry and unstable conditions. In northern France, the populations are more scattered due to the presence of the great crested newt ("T. cristatus"), with which the marbled newt hybridizes to some extent. The higher-elevation Mediterranean climates are the preferred habitat of marbled newts, and in the overlap, "T. pygmaeus" takes the lower elevations.