You just need to keep fishing in Cowboy Junction till you find it! It will come up eventually!
Go to Cowboy Junction, by Gino, and go to the pier near him.
in the piranha kingdom
Where to find magic 8-ball I'm my sims kingdom
Kingdom: Animalia
ask the sims around and u will find out
cutopia
cowboy junction
In rocket reef
The Unarcheted Isle. That is Where you Will Find Bones. :)
You will find him in the Zoo. There will be a cut-scene.
You go to the mayor Ellen
the uncharted isle