Comment by SamBam

The unstated assumptions, common in all the other puzzles of the kind, are that the farmer wants to bring everything across, nothing is to be eaten by anything else, everything must be brought over by boat, and the farmer can only bring one thing in the boat at a time. Anything left with something that will eat another thing will eat it.

This variation of the classic puzzle is unsolvable. If you have a solution, let me know.