What emergency happened at the LA Zoo?
The Big Bang Theory Season 10, Episode 17
Hey, I was thinking maybe we take Halley
to the ZOO this weekend.
The Big Bang Theory Season 10, Episode 20
The last time
we went to the ZOO,
The Big Bang Theory Season 5, Episode 4
...the order is petting ZOO first,
then buy vegetables.
The Big Bang Theory Season 8, Episode 24
We go to the ZOO all the time.
The Big Bang Theory Season 5, Episode 12