Eurasian wolves are subspecies of grey wolves. The habitat extends over western Europe, Russia, Mongolia and China. They usually hunt in a pack consists of family member. A pack of grey wolves includes about 8 to 12 individuals, but the pack of Eurasian wolves contains less.

Wild reindeer mainly inhabit Alaska, Canada, Greenland, Siberia and Norway. There are two groups; tundra and woodland are known as wild reindeer. The population of Norway is the last remaining tundra wild reindeer in Europe.

Wild reindeer eat leaves of willows and birches, also sedges and grasses in summer. Main diets in winter are lichens and fungi. They also ingest lemmings, voles, bird eggs and arctic char.