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 Why do cows wear bells? What did the dog say to the two trees? Why did the chicken cross the road? What’s a cat’s favorite day of the week? What do you call a cat that loves bowling? What’s the difference between a hippo and a zippo? See all Animal Jokes →