Overheard at the Bronx Zoo on August 28, 2010:
Husband: "Zebras!" (reads sign) "This says why they have stripes."
Wife: "They mixed a horse with...something. A donkey or something. What does it say?"
Husband: "The stripes help them avoid predators, when the herd runs they look like a blur and lions get confused."
Wife: "But HOW did they get the stripes?"
Husband: (quieter - this wasn't on the sign) "I think they just...evolved that way."
Wife: (pauses - she's not buying it) "I think they mixed a horse and a donkey."