Wolves are learning to hunt bison calves. That changes everything.

Footage of wolves targeting newborn bison in Yellowstone reveals that recolonizing predators are shifting their prey strategy as ecosystems recover — not hunting exceptions, but adapting to a landscape where larger prey are now viable targets.

Wolves documented attacking bison calves within days of birth, a predation pattern rarely recorded before reintroduction.

Bison herds respond collectively to wolf presence, altering calf survival and herd composition across the Greater Yellowstone ecosystem.

The shift signals wolves recalibrating what counts as 'huntable' as elk populations stabilize and risk-reward calculations change.