Visitor's Interaction with Bison Calf Causes Its Death in Yellowstone

A man picked up a bison calf in Yellowstone National Park causing it to be shunned by its herd.
Park officials killed the calf to prevent it from being a hazard to visitors.
Bison must be quarantined before being sent to conservation herds outside the park, but a calf abandoned and unable to care for itself is not a good candidate for quarantine.
Human interference with young wildlife can cause animals to shun their offspring.
Yellowstone visitors have been hurt after approaching bison, which can be deceptively dangerous, even when they are just grazing or resting.