Where did the mule come from? Why can't you have children? How many years can you live? How to distinguish it from a horse or a donkey?

Mules are mammals, odd-hoofed animals, like horses, sounds like donkeys, strong physique, strong limbs and hooves, rich endurance, often used to pull carts and pack goods, the use value is higher than horses and donkeys, but it is unable to bear children. So, do you know where mules come from? Why can't you have children? How many years can you live? How to distinguish between horse and donkey?

How did the mules come about?

A mule is an interspecific hybrid of a horse and a donkey. A hybrid of a male donkey and a female donkey is a horse mule. A hybrid of a male horse and a female donkey is a donkey mule. Since the genes of a male donkey and a female donkey are more easily combined, most mules are crossed in this way. Horse mule and donkey mule in appearance similar, but easy to distinguish, donkey mule like donkey, horse mule like horse, donkey mule ears slightly longer and horse mule slightly shorter, donkey mule tail slightly shorter and horse mule slightly longer, horse mule extremely strong, donkey mule good at running; donkey mule is not only very strong endurance, strength, food intake is also general, gentle and stubborn, can be used for about 30 years; horse mule endurance is very strong, strength is very large, food intake is large, impatient, can be used for about 20 years.

Why can't mules have children?

Although mules also have male and female differences, they are not fertile. The reason is that chromosomes are not paired. In any normal organism, there are pairs of chromosomes, one from the mother and the other from the father. The horse has 32 pairs of chromosomes and the donkey has 31 pairs of chromosomes. The number of chromosomes of the hybrid mule is 32+31. One chromosome is single and therefore cannot be paired. However, there are very few female mules and horses or female mules and donkeys after mating can produce offspring, only mules and mules mating is unable to produce offspring.

How many years does a mule live?

Mule life is longer, generally can live to about 35 years old, if the breeding management is good, up to 50 years old, if raised as a pet, almost can accompany people for a lifetime, raised to work, the service period can reach 20 years.

How to distinguish between horse, donkey and mule?

1. Division of families and genera: horse is herbivorous animal of order Perissodactyla, equine and equine, donkey is herbivorous animal of order Perissodactyla, equine and equine, mule is interspecific hybrid of order Perissodactyla, equine, horse and donkey.

2, appearance distinction: the horse's ears are the smallest, the mule is in the middle, the donkey's ears are long; the horse's tail is long and thick, followed by the mule, and finally the donkey; the horse's front body is slightly higher than the rear body, the mule is basically the same height, the donkey is the smallest and the tail is thin; the horse's mane is very long and falls to one side like grass on the wall, the mule is much shorter, and the donkey is very short and does not fall; the donkey is black or gray, and the horse and mule are rarely this color.

3, temperament distinction: horses and mules will only ring their noses, donkeys will ah ah

4, working value: horses and donkeys can bear, both hybrid can bear mules, but mules and mules are not fertile; mule strength, coarse feed tolerance, hard work, vitality and disease resistance, life expectancy than horses and donkeys are long, service life can be as long as 20~30 years, working value is higher than horses and donkeys.