What emergency happened at the LA Zoo?
The Big Bang Theory Season 10, Episode 17
The last time
we went to the ZOO,
The Big Bang Theory Season 5, Episode 4
Should we get lunch
or you wanna eat at the ZOO?
The Big Bang Theory Season 10, Episode 21
...the order is petting ZOO first,
then buy vegetables.
The Big Bang Theory Season 8, Episode 24
Rhinos are my least favorite
animals at the ZOO.
The Big Bang Theory Season 11, Episode 12