With all the debate lately over whether visitors should be allowed to carry weapons in national parks, much has been said about the need for protection against wild animals, bears in particular. Well, studies show bear spray is a much more effective deterrent than a speeding bullet.

Evidence of human-bear encounters even suggests that shooting a bear can escalate the seriousness of an attack, while encounters where firearms are not used are less likely to result in injury or death of the human or the bear. While firearms can kill a bear, can a bullet kill quickly enough -- and can the shooter be accurate enough -- to prevent a dangerous, even fatal, attack?

The question is not one of marksmanship or clear thinking in the face of a growling bear, for even a skilled
marksman with steady nerves may have a slim chance of deterring a bear attack with a gun. Law
enforcement agents for the U.S. Fish and Wildlife Service have experience that supports this reality --
based on their investigations of human-bear encounters since 1992, persons encountering grizzlies and
defending themselves with firearms suffer injury about 50% of the time. During the same period, persons
defending themselves with pepper spray escaped injury most of the time, and those that were injured
experienced shorter duration attacks and less severe injuries.

That snippet was taken from a report prepared by the U.S. Fish and Wildlife Service. You can find the entire document attached below.