Rip, A.K.A. Experiment 546, is an illegal genetic experiment created by Jumba Jookiba. She is designed to be improved version of Rippington.
Experiment 546 was the 546th genetic experiment created by Jumba with Hämsterviel's funding. She was designed to be the improved version of Rippington.
546 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At the unknown point, she was activated, captured, tamed and named Rip.