Wearing a thick fur coat yaks don t yammer about the cold Standing with S-shaped horns yaks stick to the herd Huddling in the Himalayas or other high places these cattle relatives stay close to keep warm Another way they hold heat is found when they try to cool their bodies down When yaks sweat they secrete something sticky that keeps their hair matted down giving them more insulation Although the females are much smaller than the males yaks can weigh over one ton & reach lengths of over ten feet As domesticated animals yaks are useful in transporting goods & as food with milk & meat at the top of the list Fun Facts One yak yields almost six pounds of fine fiber & hair each year