But the arrival of the railroads in the 1860s and 1870s enabled ranchers to put large numbers of grazing animals on public ranges. (discovermagazine.com)
For example, this is usually not true for grazing animals in terms of food - after all, what's the point of arousing yourself to look after your supply of grass when grass is everywhere? (grishastewart.com)
What is the role of large grazing animals in maintaining a healthy mosaic of forest and grasslands? (reviverestore.org)