Ancient 400-Pound Salmon Fought with Dagger-Like Teeth

Giant, spike-toothed salmon that weighed almost 400 lbs. (180 kilograms) once made their home in the ancient coastal waters of the Pacific Ocean, according to new research. The now-extinct salmon species spawned in California rivers approximately 11 million to 5 million years ago, the scientists said. The salmon's unusual spiky teeth were likely used to fight, helping them to defend their fertilized eggs, according to researchers from California State University, Stanislaus in Turlock, Californi