
"Stu the Cockatoo is New at the Zoo."
The Big Bang Theory Season 2, Episode 13

Should we get lunch
or you wanna eat at the ZOO?
The Big Bang Theory Season 10, Episode 21

You fooled me with that goat at the petting ZOO,
you will not fool me again.
The Big Bang Theory Season 8, Episode 7

The last time
we went to the ZOO,
The Big Bang Theory Season 5, Episode 4

not an attack
by some morning ZOO shock jock.
The Big Bang Theory Season 7, Episode 10