Gumfish

The gumfish was indigenous to the swamps of Naboo, and a favorite meal of the Gungans. While loved by these amphibious peoples, most other species can't abide the bitter-tasting flesh of this fish. This is largely due to the gumfishes' diet - plants in the waterways of Naboo mostly use chemosynthesis rather than photosynthesis to produce energy. This process creates a sulfurous taste which is passed on to the gumfish.

Text and facts from the “Gumfish” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.