The population of musk oxen, which first were brought to Yakutia's Arctic districts in 1996, reached 6,500 animals, the region's Ministry of Ecology, Nature Management and Forestry told TASS.

Mature musk ox bulls can stand 5 feet (about 1.5 meters) tall and weigh as much as 800 pounds (about 360 kilograms), while female cows are smaller at about 4 feet (about 1.2 meters) and up to 500 ...