I just love snapping turtles. They can go from being completely Zen, chill, relaxed, laid back, and even groggy to "I'm going to totally EFF YOU UP if you don't back away" in as much time as it takes a redneck to say "lets pick it up!" ... and they can certainly put their money where their hooked maw is. Grey tree frogs, on the other hand, are awesome because of that bright yellow butt. I mean, they go from total camouflage to "techno neon yellow" in a split second. Awesome!
