The fish's 1.5-inch-long (3.8-centimeter-long) fangs would have definitely sunk into flesh, he added. In addition, the 375-million-year-old fish had thick, quarter-size scales; tiny eyes; a flat head; and a wide mouth—sort of like a modern-day grouper. The fossil head "looks like a big, smiling face looking up at you," added Daeschler, who received funding for his research from the National Geographic Society's Committee for Research and Exploration. (The Society owns National Geographic News.)