• A male Siberian musk deer’s musk gland contains 10–20 g of musk—the most expensive animal product. Musk has a sharp smell and a brownish color.
• The Siberian musk deer’s sacrum is 5–10 cm higher than its withers due to long hind legs. Its hind legs are unusually long, so the sacrum is 5–10 cm higher than the withers.
• The Siberian musk deer’s fur is waterproof and retains heat even under snow. Snow beneath it does not melt, unlike under reindeer, moose, or roe deer.
• During the mating season, male Siberian musk deer fight each other. In prolonged fights, one often knocks the other to the ground, kicks it, and bites it with its fangs, which can lead to the defeated animal’s death. In such fights, fangs play an important role.
• The animal jumps excellently and can climb steep rocks.
• The young are born spotted, like those of many other deer.

The Siberian musk deer has soft fur with white spots for camouflage from predators; the young possess this feature. The species exhibits a compact body and strong hind legs, facilitating jumps across rocks and through deep snow. Adult individuals have long upper canines that protrude from the mouth, used for defending territory and in mating rituals. The animal’s legs are thin and sturdy, with the hind legs being longer than the front legs, which aids in jumping long distances. Siberian musk deer possess musk glands on their abdomen, which secrete a fragrant substance called musk; this scent helps attract females and mark territory.