"Are you a Carnivora?" repeated Peter.

"Ah reckons Ah might be if Ah knew what it was, but as long as Ah don't, Ah reckons I ain't," retorted Unc' Billy. "Ah reckons Ah'm just plain Possum. When Ah wants to be real uppity, Ah puts on an 'o.' Then Ah am Mister Opossum."

But Peter wasn't listening. The fact is, Peter had started lipperty-lipperty-lip for school, without even being polite enough to say good-by. He arrived at school quite out of breath. "I know!" he panted. "I know!"

"What do you know?" asked Old Mother Nature.

"I know who it is who eats flesh, yet doesn't belong to the order of flesh eaters. It's Unc' Billy Possum!" cried Peter.

"Right you are," replied Old Mother Nature. "However did you find it out?"

"I didn't exactly find it out; I guessed it," replied Peter. "On my way here I saw Unc' Billy, and it popped into my head right away that he was one we haven't heard about, and must be the one. But if he eats flesh, I don't see why he isn't a member of the order of flesh eaters."