characteristics traits of houhynhnms and Yahoos

Yahoos are basically wild humans. Yahoos in the country of the Houyhnhnms are disgusting creatures. They are dirty, savage and have few redeeming characteristics. They make medicine from their own excrement and feces, they hate honesty, they steal.... .Houyhnhnms are the antithesis of Yahoos. They are a species of horses who are endowed with great kindness and virtue. Gulliver lives among them for several years and afterwards is extremely reluctant to return to England.