Yellowstone officials kill baby bison due to herd rejection after visitor picked it up

Yellowstone National Park officials killed a newborn bison because its herd wouldn’t take the animal back after a man picked it up. The calf became separated from its mother when the herd crossed the Lamar River in northeastern Yellowstone on Saturday. The unidentified man pushed the struggling calf up from the river and onto a roadway, park officials said in a statement Tuesday. Park rangers tried repeatedly to reunite the calf with the herd but were unsuccessful. Visitors saw the calf walking up to and following cars and people, creating...