[Modernman]

A coyote can breed with a wolf, a wolf can breed with a dog, a dog can breed with a coyote. This is one species of animal with different variations.

A lion can breed with a tiger. What does that tell you?

[Mamzelle]

A team looking for a new mascot? There are many mules in nature. I think, we once had this conversation. You said there was a mule that was not sterile, and I then inquired..."Who's his baby?"