Downes, A.K.A. Experiment 357, is an illegal genetic experiment created by Jumba Jookiba. He is designed to have depressive qualities.
Experiment 357 was the 357th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to have depressive qualities.
357 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 Downes.