Multiple choice general knowledge You can tell the sex of a horse by this____________ Most males have 2 tear glands, females have 3 Most males have five fingures, females have 3 Most males have 40 teeth, females have 36 Most males have short tail, females have long one Reveal answer Fill a bubble to check yourself C Correct answer Explanation Horses can be sexed by their teeth - adult males typically have 40 teeth while females have 36. This dental difference includes the presence of canine teeth in males, which are usually absent in mares.