Bison calf euthanized after human rescue attempt

Yellowstone National Park rangers have euthanized a bison calf that had been picked up by tourists.

The visitors were cited for placing a newborn bison calf in their vehicle and transporting it to a park facility. The visitors told park rangers they were concerned for the animal’s welfare.

Park officials said it was a dangerous activity, because adult animals are very protective of their young and will act aggressively to defend them.

Interference by people can also cause wildlife mothers to reject their offspring. In this case, rangers tried repeatedly to reunite the calf with the herd. The efforts failed and the calf continued to approach people and cars along the roadway.

The incident was the latest involving visitors who engaged in inappropriate, dangerous and illegal behavior with wildlife.

Bison injure more visitors to Yellowstone than any other animal. Last year, five visitors were seriously injured when they approached bison too closely.

Park regulations require that you stay at least 25 yards (23 m) away from all wildlife (including bison, elk and deer) and at least 100 yards (91 m) away from bears and wolves. Disregarding these regulations can result in fines, injury, and even death.