
I thought it smelled
like a petting ZOO in here.
The Big Bang Theory Season 10, Episode 8

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

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

What emergency happened at the LA Zoo?
The Big Bang Theory Season 10, Episode 17

That's what you said about the
butterfly pavilion at the ZOO.
The Big Bang Theory Season 12, Episode 6