Here’s another article that I had written for my GMO newsletter. Just some interesting facts about horses’ teeth. In case you were wondering.
All adult horses have 12 premolars, 12 molars (cheek or jaw teeth), 12 incisors (front teeth). However, geldings and stallions generally have about 40 teeth and mares only 36. This is because while most male horses have 4 canines, <28% of mares have any canines. Between 0 and 4 (2 is most common) wolf teeth may also be present and are found equally in males and females. A horse’s teeth occupy more space in its head than its brain!
The common saying “don’t look a gift horse in the mouth” comes from the ability to age a horse by its teeth. As the recipient of the gifted horse, you would have been considered ungrateful for checking its age by looking in its mouth.