"I ask my colleagues to help me support and pass this legislation honoring the bison and designating it as our national mammal," Enzi said. "The bison has and will continue to be a symbol of America, its people and a way of life."
Three states have designated the bison as their state mammal and American bison freely roam national parks, such as Yellowstone and Grand Teton.
"The bison has been integrally linked to the economic and spiritual lives of many Native American tribes over the centuries," Enzi said. "Since our frontier days, the bison has become a symbol of American strength and determination."
The bipartisan bill is co-sponsored by Sens. Michael BennetMichael BennetDems knock Trump on Earth Day Dem pushed plan for both sides to admit to abusing Senate rules: report Senators aim to extend federal conservation fund MORE (D-Colo.), Kent Conrad (D-N.D.), John HoevenJohn HoevenHeitkamp raises .6 million for reelection bid: report Combating opioid epidemic, repealing ObamaCare will hurt the cause Senate panel considers how to fund Trump’s T infrastructure package MORE (R-N.D.), Mike JohannsMike JohannsLobbying World To buy a Swiss company, ChemChina must pass through Washington Republican senator vows to block nominees over ObamaCare co-ops MORE (R-Neb.), Jerry MoranJerry MoranAt the table: The importance of advocating for ABLE GOP lawmakers lead way in holding town halls Yahoo reveals new details about security MORE (R-Kan.), John ThuneJohn ThuneSeven major players in Trump's trillion infrastructure push Trump’s great tech opportunity is in spectrum sharing Norquist warns GOP: Don’t link taxes, infrastructure MORE (R-S.D.), Mark UdallMark UdallPicking 2018 candidates pits McConnell vs. GOP groups Gorsuch's critics, running out of arguments, falsely scream 'sexist' Election autopsy: Latinos favored Clinton more than exit polls showed MORE (D-Colo.), Tom UdallTom UdallSenate Dems want Trump to release ethics waivers, visitor logs Dem senator: Congress should force White House to publish visitor logs Senate Dems offer bill to restore internet privacy rules MORE (D-N.M.), and Sheldon WhitehouseSheldon WhitehouseDem senators ask Bannon for more info about Breitbart contact Senate Dems want Trump to release ethics waivers, visitor logs Senators offer bill to boost police training in cyber crime MORE (D-R.I.). The National Bison Association, Intertribal Bison Council and Wildlife Conservation Society also support the measure.