Ah Ha! by Jeff Mack is froggy fun. The frog is almost caught by a child, but gets away. He's almost caught by several animals and... you'll have to read it to find out who the frog escapes and who captures him.
It's just those too two words, Ahhh, and Ha, but they are used quite wisely, which entails utter wit.
The art is rendered in mixed media and is truly entertaining. I'll use this with Preschoolers to second graders.
P.S. look out for the alligator, the turtle, and the flamingo!
You can watch a short video of many of Jeff Mack's books here.