The Siberian musk deer is a species of small, stocky musk deer living in the forested mountainous regions of Northeast Asia. With a kangaroo-like face, long, muscular hind legs, shorter and weaker forelimbs, small chest, highly arched back, and large rear, these animals move in a sequence of coordinated jumps. Unlike other deer species, the male Siberian musk deer do not have antlers but grow fangs during the breeding season.