Yellowstone park officials kill baby bison after man picked up animal

Park staff say calf was a potential hazard to people after man touched the animal, causing it to be shunned by its herd

A man who picked up a bison calf in Yellowstone National Park caused it to be shunned by its herd, prompting park officials to kill the animal rather than allow it to be a hazard to visitors.

Park officials defended the decision to kill the newborn bison.