yak(redirected from Bos grunniens mutus)
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Related to Bos grunniens mutus: Ovis aries, Domestic Yak, yaks
a large, up to 6 ft high at the shoulder, very longhaired ruminant with a round forehead, widely separated horns, a shoulder hump and a grunting call instead of a lowing one. Hunted for its meat and hair, it is also an excellent draft animal and can survive well at altitudes above 13,000 ft (4000 m). Called also Bos mutus.