The musk deer is a beautiful animal found in Russia that does not have horns but has long canine teeth and big ears. It eats plants and its musk is used in medicine and perfume, so it has been overhunted for this purpose and is now listed in Russia's Red Book of endangered species. Once numbering 250,000 in 1845, the musk deer population dropped to only 10,000 by the early 20th century due to overhunting for its musk.