The Sarek forests are a preferred habitat for numerous species of animals. Among the large carnivores, the brown bear is particularly frequent in the park and in the neighbouring Stora Sjöfallet. The bear fairly often also ventures into the subalpine region. The Eurasian lynx, classed as an endangered species in Sweden, is also found around the lakes of Rittak and Laitaure, and is also found in the subalpine forests of Rapa Valley. The red fox is relatively frequent, and is gradually extending its territory into the higher zones, where it competes with the arctic fox. Some small mammals that are frequent in the park are the European pine marten, the least weasel and the stoat. The ermine is also found in the higher regions. The herbivores include a very large number of moose as the forests and humid zones provide them with much food. They often grow to an impressive size in the park, with enormous antlers.