A father and his small son were standing in front of the tiger's cage at the zoo. Father was explaining how ferocious and strong tigers are, and junior was taking it all in with a serious expression. Dad," the boy said finally, "if the tiger got out of his cage and ate you up ..."
"Yes, son?" the father said expectantly. "What bus should I take home?" the boy finished.
You don't see many reindeer in zoos, do you?
No. They can't afford the admission.
Zoo visitor: What's the new baby hippo's name? Hippopotamus keeper: I don't know, he won't tell me.