Say goodbye to the saber-tooth salmon, and say hello to the spike-tooth salmon. Don’t be sad. The saber-tooth salmon hasn’t lost any of its fearsome appeal. But new research, including some striking illustrations by paleoartist Ray Troll, has revealed something new about its prehistoric piscine anatomy: The giant salmon Oncorhynchus rastrosus had a pair of spiked teeth that protruded straight out of the side of its skull, instead of the downward-pointing teeth scientists formerly thought it had.