Bison had survived for 2 million years until humans arrived

To put it mildly, not many recent issues in American politics have united people across party lines. But there is one notable exception: a big beefy mammal that has inspired unanimous agreement in the US House and Senate. The American bison was voted America's national mammal in May 2016. The decision, while largely symbolic, offered support to conservation scientists, land managers and indigenous people, all of whom are working hard to bring wild American bison back to their home on the range.

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