A falabella is a miniature breed of which animal?

The Falabella miniature horse is one of the smallest breeds of horse in the world, seldom taller than 8 hands (32 inches, 81 cm) in height at the withers. The Falabella, despite its size, is not considered a pony, but rather is a miniature horse.

The ancestral stock of the horse of South America descended from horses brought to the western hemisphere by the Spanish of Andalusian and other Iberian bloodlines. In the southern part of the continent, significant numbers of these horses developed within geographically isolated conditions and by the mid-19th century, there were any number of smaller, inbred animals in the herds of Mapuche Indians of southern Buenos Aires province in Argentina. The Falabella horse was originally developed in Argentina from local horses of Criollo stock, beginning in 1868 with the breeding program of Patrick Newtall.