03/18/2010 05:12 am ET Updated May 25, 2011

Colorado Animal Encounters, From Bears To Cougars To Squirrels (VIDEO, VOTE)

On Monday, a deer attacked a 63-year-old Colorado Springs woman when she tried to pet him. In an interview with Westword, a Division of Wildlife spokesman postulated that the deer may have thought the woman was trying to disturb his mating rituals, and responded in a fit of rage.

We may never know exactly why this particular deer struck, but his aggression prompted us to compile some of the craziest video of wildlife encounters in Colorado, and a few from outside the state that were too good to leave out.

Vote for the wildest encounter below.

When Animals Attack... Beware These Colorado Beasts