Yellowstone bison calf euthanized after park visitors picked up animal on road; Guardian, 5/16/16

Oliver Milman, Guardian; Yellowstone bison calf euthanized after park visitors picked up animal on road:

"“These actions endanger people and have now resulted in the death of a newborn bison calf,” said the NPS. “Approaching wild animals can drastically affect their wellbeing and, in this case, their survival.”

The four million people a year who visit Yellowstone are required to stay at least 25 yards (23m) away from all wildlife and at least 100 yards (91m) from bears and wolves.

“Disregarding these regulations can result in fines, injury, and even death,” said the NPS.

“The safety of these animals, as well as human safety, depends on everyone using good judgment and following these simple rules.”"