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Another impressive aspect is that the Duisburg specimen was reported by Mazak having the upper canine teeth up to 9 cm from the gumline over the curve.
I assume the Duisburg specimen along with Sungari River giant can produce the canine teeth up to this magnitude, close to 8 cm in crown height from the gumline, and measured over 4 cm at the gumline base. They simply dwarfed the regular Amur canine teeth.
At 300 kg, their canine teeth can also surpass those of a 450 kg Pleistocene lion, since a 120 kg Sumatran tiger can get its canine teeth bigger than those of a 180 kg African lion.