Nigerian Dwarfs appeared in West Africa, and they are considered to be the smallest goats on earth. They are very easy-going, they love human company, and they are particularly good with children. Males measure about 23 inches high, and females are 22 inches tall. These goats occur in various colors, including spotted, and there are two species: the Dwarf and the Pygmy, the latter being stockier and coming in a more restricted range of colors.