No, according to research done by Kerry A. Gunther of Yellowstone Park Bear Management.
June 6, 2010
There was no evidence linking menstruation to any of the 32 bear attacks in Yellowstone between 1980 and 2002.
Although there is no evidence that grizzly and black bears are overly attracted to menstrual odors more than any other odor, certain precautions should be taken to reduce the risks of attack.
> Use pre-moistened, unscented cleaning towelettes.
> Use internal tampons instead of external pads.
> Do not bury tampons or pads. Pack it in, pack it out.
> Place all used tampons, pads and towelettes in double zip-close baggies and store them unavailable to bears, just as you would store food. This means hung at least 10 feet above the ground and 4 feet from the tree trunk.
> Tampons can be burned in a campfire, but remember that it takes a very hot fire and considerable time to completely burn them.
Must have been a slow news day…..