A Tale of the Forest Giant (1955)

Far up north, in one of the nature reserves, a group of kids finds a moose calf whose mother has been mauled by a bear, and they help little Ryzhik survive. Time goes by. The leader of the moose herd is killed by a poacher, and Ryzhik takes his place. About the grandeur and beauty of nature, and the difficult and selfless work of the nature reserve staff.