Why do hummingbirds hum? Because they don't know the words.
A man's big rottweiler has been losing its vision, so the owner brings the dog to the vet. The veterinarian picks the dog up and says, "I will have to put him down." The owner asks, "Why? Because he's blind?" The vet replies, "No, he's heavy. I need to put him down."
Why are sharks mostly salt water creatures? Because pepper would make them sneeze.
Q: What says "Eoo?"
A: A cow with no lips.
An elephant and a camel are talking. The elephant asks, "Why do you have boobs on your back?" The camel replies, "Ha! That's a funny question coming from an animal with a penis hanging from his face."