How did horses transform bison hunting in the Plains culture area?

The introduction of the horse fundamentally transformed the Plains culture area, serving as a catalyst for a shift toward a highly mobile, nomadic lifestyle centered on bison hunting.12

Before the arrival of horses, hunting was a pedestrian endeavor. Once mounted, hunters could effectively keep pace with the region’s large bison herds, significantly increasing their productivity and ability to sustain themselves on the grasslands. This newfound mobility allowed tribes to synchronize their annual movements with the seasonal patterns of the bison.3

During the late spring and summer, when bison congregated for calving, large groups would gather to hunt en masse, securing enough food to support extensive populations. As the bison dispersed into smaller herds during the rest of the year, the tribes followed suit, breaking into smaller bands. While early firearms were eventually adopted, many hunters initially preferred the bow and arrow for the mounted hunt due to its superior accuracy at the time. This transition was so profound that scholars often divide the history of the Plains into distinct pre- and post-horse periods.312