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Chuckie Sue gives out a big yawn.
Chuckie Sue is Telly Monster's pet hamster, introduced in Season 30. Like Dorothy and Bernice the Pigeon, she appears on Sesame Street as a live animal rather than a Muppet.
The hamster's original name was Chuckie, until Telly discovered that his pet was pregnant in Episode 3860, following a playdate with Elizabeth's hamster, Herman. He decided that her full name was Chuckie Sue, although he continues to call her Chuckie. Chuckie Sue's kids are then named Moe, Larry, Curly (referencing The Three Stooges) & Chuckie.
When Chuckie Sue gave birth, Telly claims that that is a unique accomplishment proving the hamster's superiority during the "Greatest Pet in the World" contest; Zoe, however, claims that Rocco has fathered an entire family of pebbles.
Chuckie Sue apparently changed color in the "Pets" episode of Elmo's World. She had previously been a grayish-white; on Elmo's World, the hamster was brown.
Prior to Chuckie Sue, Telly previously owned a hamster named Sweetie Pie, show in Episode 3759.