Badín and additional 23.75 hectares are protected as a buffer zone. Dominant tree species are fir ("Abies alba"), beech ("Fagus sylvatica"), maple ("Acer pseudoplatanus"), ash ("Fraxinus excelsior"), and elm ("Ulmus glabra"). On average, fir threes achieve an age of 350–400 years and beech trees 210–230 years in Badínsky prales. The biggest living fir tree is 46 m tall with a stem diameter of 148 cm. Several dead trees that have already fallen down are even bigger. The local fauna, still partially unexplored, includes red deer, roe deer, boar, brown bear, lynx, wild cat, fox, and marten. In historical records, the village
Fagus sylvatica depends on the location: in forest areas, "F. sylvatica" grows to over , with branches being high up on the trunk. In open locations, it will become much shorter (typically ) and more massive. The leaves are alternate, simple, and entire or with a slightly crenate margin, 5–10 cm long and 3–7 cm broad, with 6–7 veins on each side of the leaf (7–10 veins in "Fagus orientalis"). When crenate, there is one point at each vein tip, never any points between the veins. The buds are long and slender, long and thick, but thicker (to ) where the buds