1.5.

a. American bison onced freely roamed the Great Plains. In the 1820s, there were some 30 million bison in the United State but a survey in 1889 counted just 1 ,091. Why were the bison driven to near extinction?

How were the bison like tuna?

b. At some restaurants and grocery stores, you can buy bison burgers, made from farm-raised bison. Is this good news or bad news if we want more bison around?