I've crossed fruit flies, tomatoes and yeast, but I would clearly draw the line before taking on this project.
A genetic linkage map for the saltwater crocodile (Crocodylus porosus). BMC Genomics. 2009 Jul 29;10:339
Actually, the Wikipedia entry for the species is a bit reassuring. Don't believe those ridiculous stories of 21 footers -- the largest measured individual was only 20 feet. And only one or two fatal attacks occur each year, and they make headlines in the papers. I'll sleep like a rock tonight!