Which species were affected by unregulated hunting in America?

• A. Cattle, horses, sheep, goats
• B. Rabbits, squirrels, raccoons, foxes
• C. Deer, elk, moose, grizzly
• D. Bison, beaver, gray wolves, passenger pigeon

Answer: (D)

Unregulated hunting, often driven by growing markets and expanding frontiers, can devastatingly reduce wildlife populations before any protections exist. The four species that illustrate this most starkly are bison, beaver, gray wolves, and the passenger pigeon.

Bison were hunted across the Great Plains for hides, meat, and transport by railroad crews, with little to stop the slaughter. The ranching and railroad expansion turned slaughter into a rapid, unchecked industry, leaving only a fraction of the original numbers by the end of the 1800s. Beavers faced intense trapping for fur as European and American demand surged; trapping swept across much of their range, driving populations to near disappearance in many areas before wildlife laws began to appear. Gray wolves were subjected to widespread bounty hunting and persecution due to conflicts with livestock and competition with humans, leading to dramatic declines and local extirpations in many regions before protections were introduced. The passenger pigeon, once numbering in the billions, were driven to extinction by mass market hunting and habitat pressures with almost no regulation, and the last known individual died in the early 20th century.

These cases show how unregulated hunting can wipe out species en masse, long before modern wildlife management and protections were in place. Other groups listed were affected by hunting as well, but the extreme, nationwide impact driven by market hunting without early protections is most clearly demonstrated by these four.