What 's tickling these animals funny bones? The "Animal Crack-Ups Calendar"! Pairing a daily full-color photograph of an animal howling with laughter and an irresistibly corny joke, pun, or riddle, it 's a goofy hoot for the whole family. Find out why the polar bear is rolling on the floor laughing: "Where do polar bears keep their money?" "In snow banks." And here 's the gem that put the lemur in stitches: "Why couldn t the primate become a comedian? His jokes were getting lemur and lemur. "Uproarious and adorable images perfectly matched with a groaner that 's so bad, it 's hilarious...right, sea lion? "What does stuck seaweed say? Kelp! Kelp!"