Purk wears a diaper and a little bow in her ear. She is clumsy and messy and loves to get herself dirty. She can't walk yet and only knows a few words. She is taken care of by everybody on Sesamstraat.
Introduced in 2003, Purk is the newest of the Muppet characters, and she's very popular. She was created in order to introduce the subject of "a younger child in the family". It took three years for Sesame Workshop to approve the character: they felt that Purk should not be too fat due to the issue of obesity. The actual puppet was based on a drawing by Sesamstraat actor and mime artist Hakim Traïda.
After a week of mysterious introductions referring to a "special surprise", Purk debuted in a Sesamstraat Sinterklaas special. In the special, Tommie runs away from Sesamstraat after he refuses to give his stuffed crocodile to Purk.
Before the taping of the special, Sesamstraat organized a press convention about Purk's 'birth', hosted by Tommie and Ieniemienie. The newborn Purk came falling out of the sky during the conference.