
- It doesn't even know it's called a GIBBON.
- True.
The Big Bang Theory Season 8, Episode 8

It'd be more hygienic
if they had a plague-infested GIBBON...
The Big Bang Theory Season 2, Episode 4

...and his sister just successfully grew
a human pancreas in an adolescent GIBBON.
The Big Bang Theory Season 2, Episode 15

Why else would you grow
a pancreas in a teenaged GIBBON?
The Big Bang Theory Season 2, Episode 15

The GIBBON is the only member
of the ape family not classified as a great ape.
The Big Bang Theory Season 8, Episode 8