one of my favorite Sharks, the Hammerhead, designed in Sculptris. Have not had the chance to print it yet but will be doing asap. This design will definitely need supports, and probably get away with 50% fill. I will post print as soon as I can. Update just added 2 new files (Hammerhead2a (Cut 2).stl & Hammerhead2a (Cut 1).stl) these are the same but split down the middle for less support.