Why do ducks have webbed feet

Why do ducks have webbed feet?To stamp out forest fires!Why did the pig go to the casino?To play the slop machine!What is a pigs favorite ballet?Swine Lake!What do you get if you cross a hen with a dog?Pooched eggs!How do you stop a rooser crowing on Sunday?Eat him on Saturday!Why did the foal cough?Because he was a little horse!What is the opposite of cock-a doodle-doo?Cock-a-doodle-don't!What's the best way to keep milk from turning sour?Leave it inside the cow!Where do milkshakes come from?Excited cows!