A jenny is the term used to describe a female ass or donkey. Occasionally, a female mule is referred to as a jenny, but more often, the term "molly," "mare" or "mule mare" is used. In western Canada, the term "jennet" is sometimes used instead of "jenny," though the term Jennet usually refers to a type of horse popular in the Middle Ages. One archaic term for a jenny was "she-ass." An intact male donkey is called a "Jack."