NONE OF YOU guessed right about P’s new diet. My favorite guess came from Celeste: “Dog? It’s that kind of world...”
I’m tempted to just mete out clues over the next few days, but really, how much suspense is anybody really in with regard to the diet of a dog they don’t even know? So I will show you the two main ingreds:

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I KNOW, you guys. I know.
ADDENDUM: I was wrong! Someone did guess right! DeniseL, under the cover of anonymity, totally pegged the kangaroo. Cramazing.