S7E15: Fry and Leela's Big Fling
Why, if it isn't Professor Farnsworth's friends.
Zoidberg, Bender and...
Who is this fetching young marmoset?
Enough zoo director talk.
We know those guys, and we want them freed.
DR. BANJO: Ah! Yes, our famous Human Habitat.
This pair have been our most popular specimens yet.