no
Horses have 64 chromosomes while donkeys have 62, thus a horse has two more chromosomes than a donkey. (For the record a mule has 63 a mix of the horses and donkeys numbers.)
more than it takes donkeys.
Yes, donkeys often graze with horses.
Donkeys have long ears, considerably longer than horses Horses are faster than donkeys. Even smaller horses can outrun a donkey. Donkey's conformation is not as similar as a horse when you look into the finer details. Donkey's need an earlier warning so they can have a head start to run away. Therefore donkeys hearing is better.
donkeys
zebras can run faster than horses
i believe that the Assyrians owned horses so yes
Equidae, which includes horses and donkeys.
No
They usually don't run unless something or someone sets it off. If that happens (Hopefully it won't) they do run very fast. When they are out on pasture and gallop through the field, they run faster that a donkey and ponies but not a lot faster than horses. Depending on the animals size and fitness levels they will run faster than some horses.
Equus, horses and donkeys.
Donkeys are like horses in some ways.