text: what is the smallest breed of horses?   the falabella horse   "the falabella is a horse that possesses all the features and attributes of its taller relatives.fal2z.jpg (13443 bytes) the fixed nature of the genetic characteristics of the falabella allows for their natural reproduction. offspring are bred with the same temperament. average heights are approximately between 28 in. (0.70 m) and 31 in. (0.77 m) in a young horse (2-3 years old). for mature horses, one can expect a height between 30 in. (0.76 m) and 32.5 in. (0.83m). smaller and bigger horses are exceptional. these minihorses' proportions are in complete harmony."