POP QUIZ AN­SWER

EQUUS - - Eq Hands On -

a. Horses take one breath per each stride of a can­ter or gallop—the horse’s in­ter­nal or­gans act as a “pis­ton” of sorts, push­ing air into and out of the lungs as they move back­ward and for­ward with each stride. This re­sults in ex­tremely ef­fi­cient res­pi­ra­tion, with a gal­lop­ing horse tak­ing as many as 150 breaths per minute.

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