Horses by nature are quiet animals, in part due to their role as prey. Horses suffer silently when they experience long term, chronic pain like Arthritis, laminitis, and colic, unlike humans who have a variety of sounds to express pain , and dogs who generally express it as a whimper.
No, the Pony Express used horses.
there was not a single pony on the pony express only horses.
to swat flies and express emotions
the pony express
Yes. The riders rode horses on a set route with stops to change horses.
probably because they are in pain
The same as any other creature. To relieve pain.
Most of the Pony Express horses far outlived the Pony Express. Although most of us know or have at least heard of the Pony Express it only lasted a year. Hollywood may have played a part in making it seem bigger than it really was. The horses that were used were in a lot of cases the rider's person mounts. What belonged to the US government were absorbed into other federal jobs that were in need of horses. (most likely the military)
The Pony Express stabled their horses all along their route from St. Joseph, Missouri, to California. There was no point in stabling horses any significant distance from where they were needed.
Is this a chicken or the egg question? There was no pony express before horses.
Many of the Pony Express horses may have been the precursor to the Quarter Horse but at the time Quarter Horses as a breed did not exist. But many of the horses were of a stock type that was popular for cattle work with cow hands. They were sturdy, athletic and surefooted for travel over rough terrain.
These are antibiotics used to treat infection not acute or chronic pain