Ling Ling and Chang Chang

{{performer2|Jeff Chayette|Ling Ling|Perry Anzilotti|Chang Chang]]

Ling Ling and Chang Chang are a pair of zoo humans in the Dinosaurs episode "The Mating Dance." Attempts to mate the pair have failed continually. It is feared that Ling Ling is barren, and Chang Chang is sent to Mel Luster's Mating Dance Academy as a last resort. Referencing real-world problems with panda mating, the joke lies in the fact that Ling Ling and Chang Chang are both bearded males.