A biological species is a group of organisms similar enough that they could interbreed and produce fertile offspring under natural conditions. A mating between a horse and a donkey produces a mule, but the mule is sterile, so the horse and donkey are not considered members of the same species..
Hereof, why are horses and donkeys not considered the same species?
A horse and a donkey can mate with each other. Their offspring, called a mule is not fertile. No, horses and donkeys do not belong to the same species. Two organisms belong to the same species only if they can mate and produce fertile offspring.
Subsequently, question is, why can horses and donkeys interbreed? Horses have 64 chromosomes and donkeys 62, so when the two breed their mule offspring ends up with 63. Because this is an odd number, it's impossible for them to divide evenly into two. That means the mule cannot produce sperm and egg cells that carry exactly half the animal's chromosomes, as should happen.
Furthermore, are horses and donkeys the same species?
Horses and donkeys are different species, with different numbers of chromosomes. Of the two first generation hybrids between these two species, a mule is easier to obtain than a hinny, which is the offspring of a female donkey (jenny) and a male horse (stallion).
Why different species Cannot reproduce?
In some case, organisms of different species can mate and produce healthy offspring, but the offspring are infertile, can't reproduce. Because members of a species can interbreed, the species as a whole has a common gene pool, a collection of gene variants.
Related Question Answers
Can donkey reproduce?
A mule is the offspring of a male donkey (a jack) and a female horse (a mare). A horse has 64 chromosomes, and a donkey has 62. The mule ends up with 63. Mules can be either male or female, but, because of the odd number of chromosomes, they can't reproduce.What is a horse cross donkey called?
A hinny is a domestic equine hybrid that is the offspring of a male horse (a stallion) and a female donkey (a jenny). It is the reciprocal cross to the more common mule, which is the product of a male donkey, a jack, and a female horse, a mare.Can a donkey and a horse have babies?
A male horse and a female donkey have a hinny. A female horse and a male donkey have a mule. But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs.Can two different species breed?
Usually, different species don't mate. But when they do, their offspring will be what are called hybrids. If the parents are from the same species, their DNA is very similar. But DNA from different species or species groups will have more variations.What animals can mate with other species?
10 Bizarre Hybrid Animals - Zebra + Any other Equine = Zebroid.
- Lion + Tiger = Liger.
- Bottlenose Dolphin + False Killer Whale = Wholphin.
- Grizzly Bear + Polar Bear = Grolar Bear.
- Domestic Cattle + Americon Bison = Beefalo.
- Serval + Domestic Cat = Savannah.
- Male Donkey + Female Horse = Mule.
- Male Camel + Female Llama = Cama.
Why does the donkey have a cross on its back?
“The Nubian donkey has a cross on its back because it was said that this breed of donkeys carried Jesus to Jerusalem on Palm Sunday.” Seeing the tragic event of Jesus' crucifixion, the donkey wished that he had been able to carry the cross for Jesus and bear his burden.Can zebras and horses interbreed?
Horses and zebras can reproduce, and whether the result is a zorse or a hebra depends on the parents. It's an unusual pairing usually requiring human help. Other zebra hybrids include the zonkey. Properly imprinted, equine hybrids can be trained like other domestic donkeys and horses. Is a donkey a species?
A donkey, although part of the horse family (Equidae), is, in fact, a different species from the horse (Equus africanus asinus). Donkeys are descended from the African wild ass. They were likely first bred around 5,000 years ago in Egypt or Mesopotamia. A mule, on the other hand, is a hybrid animal.Can a male horse breed with a female donkey?
Breeding between a female horse, or mare, and a male donkey, or jack, will produce a mule. When a female donkey, also known as a jenny or jennet, and a stallion or male horse are bred, the result is a hinny. Hinnies vary in appearance more than mules do.How can you tell a donkey from a mule?
Donkey is a domesticated hoofed mammal, which is related to the horse. But a Donkey is smaller than a horse with long ears, short hair on the tail, short mane and a dark stripe along the back. A Mule is a hybrid animal from crossing a jack (male Donkey) and a mare (female horse).What is a female mule called?
The correct name for a male mule is a horse mule, but they are sometimes referred to as a John or Jack mule. The name for a female mule is a mare mule. Sometimes females are informally called molly mules. Mule colt or mule filly refers to a mule that is less than 3 years of age.Can mules give birth?
As you may know mules are sterile because they are a hybrid. A mule is a cross between a Jack donkey and a mare. Donkeys have 62 chromosomes and horses have 64 chromosomes; a mule is born with 63. The odd number of chromosomes in a mule makes it impossible for the formation of an embryo, therefore a mule is infertile.Why ride a mule instead of a horse?
Surefooted. It's not a coincidence that mules are favored over horses for packing or riding in mountainous terrain. That's because the mule has a reputation for being more surefooted than his equine cousin. His feet are smaller and more upright than those of the average horse, which contributes to his surefootedness.Are donkeys smarter than horses?
Donkeys are much more of an all terrain animal than horses. Donkeys are in fact a highly intelligent animal despite popular misconception. A donkey is stronger than a horse of the same size.Is a zebra a horse?
Yes, a zebra is a species of wild horse that lives in Africa. Zebras are members of the Equidae family of the genus Equus. The Equidae family (known as equids) also includes horses and asses, but zebras are not merely striped horses, they're a different species from the horse.Do donkeys neigh?
Though the mule's call is called a bray, it is quite different: breathier, higher pitched, and brief. Sort of a cross between a horses whinny and a donkey's bray as you might expect. At donkey and mules shows I found out that my large standard donkey, Caleb, has the loudest deepest bray of any I've ever heard.How can you tell a mule from a horse?
So, the main difference between a mule, and a horse is genetics. Horses have 64 chromosomes; donkeys have 62, leaving the mule and with 63. This mismatch in pairs leaves the mule almost always sterile, though there have been about 60 recorded instances of a female mule able to conceive with a horse or donkey.Can a Zorse reproduce?
A zorse is the offspring of a zebra stallion and a horse mare. The rarer reverse pairing is sometimes called a hebra, horbra, zebrinny, zebret, or zebra hinny. Like most other animal hybrids, the zorse is sterile. A zony is the offspring of a zebra stallion and a pony mare.Are ligers real?
Ligers are a cross between specifically a male lion and a female tiger. They are a man-made animal and not considered a real species because they would not occur naturally in the wild. Lions are from Africa and tigers are from Asia so there is no reason for their breeding other than human entertainment. 
