Alligators vs Crocodiles

During a recent tour one of my passengers listened intently to my comparison of Alligators and Crocodiles and then recited the following Ogden Nash poem verbatim. Fun moment and perfect timing.

The Purist
I give you now Professor Twist,
A conscientious scientist.
Trustees exclaimed, "He never bungles!"
And sent him off to distant jungles.
Camped on a tropic riverside,
One day he missed his loving bride.
She had, the guide informed him later,
Been eaten by an alligator.
Professor Twist could not but smile.
"You mean," he said, "a crocodile."