Donkey of Asiatic wild ass or onager, "Equus hemionus", and three subspecies of the kiang, "Equus kiang", of the Himalayan upland. A male donkey (jack) can be crossed with a female horse to produce a mule. A male horse can be crossed with a female donkey to produce a hinny. Horse-donkey hybrids are almost always sterile because horses have 64 chromosomes whereas donkeys have 62, producing offspring with 63 chromosomes. Mules are much more common than hinnies. This is believed to be caused by two factors, the first being proven in cat hybrids, that when the chromosome count of the male
Male privilege women's rights but fail to realize that their privilege as a whole, is a part of the issue at hand. In both India and China, male offspring are privileged and favored over female children. Some manifestations of son preference and the devaluation of women are eliminating unwanted daughters through neglect, maltreatment, abandonment, as well as female infanticide and feticide despite laws that prohibit infanticide and sex-selective pregnancy termination. In India some of these practices have contributed to skewed sex ratios in favor of male children at birth and in the first five years. Other examples of privileging male offspring are