Here in Florida besides Black Bear, panthers and alligators the next thing to be worry are snakes and people (these two in not particular order). In where I live you could encounter a black bear but you will have to be in really isolated areas of the natural reserve and the odds of finding one are really small. Florida panthers are very deep into the Everglades. We know that they are there because of trap cameras, I do not know of any human encounter. From time to time you hear of an alligator attack but mostly are people swimming or walking dogs near water. I have never heard of a photographer being attack by an alligator and I have seen few of them in the wild and of course I have taken pictures of them.
So... probably the most dangerous could be snakes and people. Considering that I carry and handgun and you can guess which animal I consider most dangerous 
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Regarding snakes, I do not know what should be considered a good protection against them. 
We have few of them really venomous around here.
