American bison were reduced from 60 million to fewer than 1,000 by the late 19th century — their restoration to grassland ecosystems is simultaneously a conservation success story and a welfare triumph for individual animals.
Bison restoration provides one of the clearest examples of conservation improving both population status and individual animal welfare simultaneously. Bison in naturalistic settings — able to roam, form long-term social groups, and engage in their full behavioral repertoire including wallowing, communal grazing, and calf-rearing behavior — live lives qualitatively different from their commercially managed counterparts. The individual welfare of each bison in a restored prairie herd — able to express natural behavior in appropriate habitat — is better than any captive or intensively managed bison by every behavioral and physiological measure. Restoration creates the conditions for animal flourishing at landscape scale.