Fatfish

"It's full of wonderful fish goodies!"

Description
Fatfish are found while fishing in any biome; They can be either picked up using build mode or attacked. When attacked they explode, yielding fishing drops from the biome they are killed in (savanna fish, bawg fish, or tundra fish).

Exploits
If you fish up a fat fish in one biome(ex. Savanna) you can place it as furniture and open it in another biome(ex. the Bawg) in order to get fish from that biome even before you have that biomes fishing pole.