[babble-on]

C'mon, a mule is a hybrid with no ability to reproduce. What other reason could there be for including it on the list?? I figured kangaroo was the bluff answer to sucker in the simpletons.

[sweetliberty]

But the others are mammals.

[carenot]

C'mon, a mule is a hybrid with no ability to reproduce.

Maybe so, but the 1st President was very proud of his mules. They are smarter and stronger than horses or donkeys.