The coloration of this particular goat species ranges from white to gray and roan to calico. Even though they are smaller than other goat species, Nigerian dwarf goats produce a large quantity of milk for their size. Their milk has a sweeter taste and a higher butterfat and protein content than milk from full-sized dairy goats. Nigerian dwarf goats have horizontal slit-shaped pupils, an adaptation that increases peripheral depth perception, similar to an octopus.