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Not really a crime against humanity but could be considered a crime against bison.
Bison were hunter to almost extermination in the 1800s, their hide was used for leather and the rest of the body was left not to be used at all.
However Bison bones were found to be useful in refining sugar, and in making fertilizer and fine bone china. Bison bones price was from $2.50 to $15.00 a ton.
These are bison heads