Animal attacks do happen, and if media accounts are any indication, they seem to be occurring with greater frequency. Mountain lions regularly make the news. Burgeoning black bear populations in many states are a growing threat. These animals could be hungry, defending their territory or their young, unexpectedly startled or just having a bad day. The same applies to wild boars and alligators. During the rut, moose and elk can also get belligerent and are certainly capable of doing you harm. Toss in feral dogs and the occasional rabid fox, raccoon or coyote (none of which are likely to kill you, although after undergoing a series of rabies shots you might wish they had), and the expression "it's a jungle out there" doesn't sound quite so trite.