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" ... Spike-teeth or saber-teeth? When this salmon species was first described, researchers called it a "sabertooth salmon" because of the long, robust teeth on its upper jaw, but actually they point outward instead of downward. This makes them more spike-teeth rather than sabers. The teeth were around 1.5 inches long and pointed straight out from the top of the jaw-- likely used for breeding, digging and fighting. Living Pacific salmon fight with each other during mating season for the breeding rights to females, but did O. rastrosus do the same? ... "