With its rhyming wordplay and persistent playfulness, surely this is a perfect fit.
And the cast of a bear, a cat, a mole, a dove, a bull, a yak, an armadillo, and... wait for it... a gnu! Now, come on! Tell me you aren't smiling right now.
I'm not sure why I hadn't before heard of The Grumpalump (published in 1990), but I am already very much excited to share it with my PreK and Kindergarten friends in the very near future.
This is my favorite find of the 2013 Shelf Challenge by far!