Fagus sylvatica from about north Suffolk across to Cardigan. Oak are the dominant forest trees north of this line. One of the most beautiful European beech forests called Sonian Forest ("Forêt de Soignes/Zoniënwoud") is found in the southeast of Brussels, Belgium. Beech is a dominant tree species in France and constitutes about 10% of French forests. The largest virgin forests made of beech trees are Uholka-Shyrokyi Luh () in Ukraine and Izvoarele Nerei ( in one forest body) in Semenic-Cheile Carașului National Park, Romania. These habitats are home of Europe's largest predators (the brown bear, the grey wolf and the lynx). Many
Hylorina sylvatica Hylorina sylvatica Hylorina sylvatica (also known as the Emerald forest frog, or in Spanish, sapo arboreo) is a species of frog in the family Batrachylidae. It is monotypic within the genus Hylorina. It is found in Argentina and Chile. This species is endemic to the austral "Nothofagus" forests of Chile and Argentina with a narrow distribution along the eastern slopes of the Andes. Male "Hylorina sylvatica" grow to snout-vent length of and females to . They are emerald-green during the day while they turn dark green at night. Adults can be found in permanent and temporary pools, swamps, and marshes.