This has been reported in foxnews.com dated 28 September 2016.
The question is whether federal wildlife officials should re-examine and place the Yellowstone bison in the threatened or endangered species category. Bison had been designated by Congress as the national mammal earlier this year. These had been hunted to near extinction in the late 19th century and there is now an estimated 4,900 of them as the last remaining populations in the U.S. that don't have cattle genes in their DNA.
However, park biologists do not agree to this. They have said that the bison population needs to average between 3,000 and 5,000 animals to preserve genetic diversity. Officials of the park have also said that the bison population has grown steadily from 500 animals in 1970 to the current numbers. Therefore, culling the herd does not put the population at risk.
Image courtesy wikimediacommons.org
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