Musk ox stand with their backs to the below-zero wind, slowly breathing through nostrils that warm the supercooled arctic air before it is taken into the lungs.

• 麝牛背对着零度以下的寒风，超级寒冷的北极空气缓慢通过鼻孔时，变得温暖了些，然后才会进入肺部。