How did large European mammals change the nature of work in America

People in America integrate the  European Mammals to their Economic activities.

Explanation:

Cattles and Horses are among the large Mammals that introduced by the  European in American region, and they change the way people in America conduct their daily activities.

For example, Farmers relied by only using tools to fertilize their land. After  Cattles exist, they integrate their farming tools so it can be pulled by these cattle's and make the while process a lot faster.

We can also see this in the distribution process. Without horses, the American people cannot pulled off carriage bring their goods and sell it to a far location.

they could find out our specific needs.