Which massive bovine, once numbering in the tens of millions, was nearly hunted to extinction in the 19th century and is now the national mammal?

• A Bison ✓
• B Moose
• C Elk
• D Muskox

The bison (often called buffalo) was designated the national mammal in 2016, and wild herds now roam in national parks like Yellowstone and Badlands.