
Rhinos are my least favorite
animals at the ZOO.
The Big Bang Theory Season 11, Episode 12

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

...as those that plagued Stu the Cockatoo
when he was new at the ZOO.
The Big Bang Theory Season 2, Episode 13

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