The director of a zoo is desperate. The kangaroo keeps escaping from its enclosure, so he decides to build a six-foot-tall one. The next day, he sees that the kangaroo has escaped again, so he makes it nine feet high, but the kangaroo escapes anyway. Then he makes it twelve feet, and then fifteen, but the kangaroo always finds a way to escape.

A monkey who has seen it all asks the kangaroo, "When do you think he'll get tired?"

And the kangaroo replies, "When he realizes I get out through the door. They always forget to shut it."

A family of antelopes has just arrived at the zoo. At sunset, the antelope calf asks its mother, "Can I go play with someone?"

"Sure," says the mother antelope. "Ask the zebras."

After a while, the calf comes back and its mother asks, "Did you ask the zebras to play with you?"

"No," replies the calf.

"Why?"

"Because I saw they were all in their pajamas, and I thought they were going to bed."

A man is at the zoo for a job interview.

"We've run out of gorillas," says the interviewer, "The only job we can offer you is to dress up as a gorilla and get into the cage to fool the visitors into thinking we have one."

"All right," the man says, "I'll take the job."

Some time later, the man puts on the costume and mistakenly gets into thel lions' cage. When he realizes this, he starts to scream, "Help! Help!"

And the lion tells him in a human voice. "Shhhh! Shut up or we'll get fired!