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Canine size sexual dimorphism can also be used to determine the relative degree of male-male contest competition and their mating system in the same way as we have used body size sexual dimorphism. We call this index CSSDI. Human BSDDI is 1.27, but their CSSDI is 1.04. What is the mating system for humans based on BSSDI? Based on CSSDI? What do you think could explain this discrepancy?
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