Rack, A.K.A. Experiment 325, is an illegal genetic experiment created by Jumba Jookiba. He is designed to destroy fishing lines and nets with his horns and jagged tail.
Experiment 325 was the 325th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to destroy fishing lines and nets.
325 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, he was activated, captured, tamed and named Rack.
Yellow in color, 325 has stitch-like antennas and two horns on his head. He has sharp teeth, fins and a jagged shark-like tail. He resembles some kind of aquatic fish or shark.