Why do crabs never give to charity? Animal Jokes Why do crabs never give to charity? Because they are shellfish. 👍 Upvotes: 0 More Animal Jokes What do birds give out on Halloween? What did the duck say when he purchased lipstick? Did you hear about the chameleon who couldn’t change color? What do you call a pig that knows karate? Why do cows wear bells? What do you call a bald porcupine? See all Animal Jokes →