Horses are unable to burp, vomit or breathe through their mouths. Their digestive system only works in one direction. The drawback is that this can cause colic. ¹⁾

The peak power output of the horse could be as high as 15 horsepower; one hp (horsepower) is a rate of sustained activity of a horse in typical works in agriculture or powering industrial machines. ²⁾

Adult stallions have up to 44 permanent teeth in their mouth at once. Mares usually have between 36 and 40 teeth. ³⁾

Old Billy, born in England in 1760, was the longest-living horse, verified to be 62 on the day of his death. He lived as a barge horse that pulled barges up and down canals. ⁴⁾

Horses can sleep both lying down and standing up. ⁵⁾

Horses can run shortly after birth. ⁶⁾

Domestic horses have a lifespan of about 25 years. ⁷⁾

Horses have about 205 bones in their skeleton. ⁸⁾

Horses run an average of 27 miles per hour. ⁹⁾

Horses can be crossed with donkeys. ¹⁰⁾

Horses have been domesticated for over 5000 years. ¹¹⁾

Horses have larger eyes than any other mammal that lives on land. ¹²⁾

Because the horse's eyes are on the side of the head, they are able to see almost 360 degrees at once. ¹³⁾

Scientists believe that horses have evolved over the past 50 million years from much smaller creatures. ¹⁴⁾

A horse's teeth take up more space in the head than the brain. ¹⁵⁾

Horse hooves are made of the same protein that makes up human hair and nails. ¹⁶⁾

The long, silky hairs that cover the lower half of draft horses’ legs are called “feathers”. Clydesdales and Shires have the heaviest feathering. ¹⁷⁾