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A 72-year-old woman was gored several times by a wild bison in Yellowstone National Park last week after she allegedly got within 10 feet of the animal "multiple times" in order to take its picture. The incident is under investigation, but the park is taking this opportunity to remind campers to always keep a safe distance when photographing wildlife.

How much damage can a tiny drone propeller really do when it comes up agains something as solid as a person? That's the question Aalborg University in Denmark is answering with a rig that can ram a spinning drone propeller into a piece of flesh at 33mph... and record the results in slow motion.