My mother was a Mare; <br />My father was, alas, <br />(It pains me to declare), <br />A veritable Ass. <br />With rare exceptions, as a rule, <br />There're no descendants from a Mule- <br />The simple reason why, no doubt, <br />Some other families die out.<br /><br />John Bannister Tabb<br /><br />http://www.poemhunter.com/poem/a-brief-pedigree/
