Up here, our 'biggest' threat is the Polar Bear. That being said, more folks have been bothered by Moose over the years. We've got a healthy population of Black Bears here too, but they are timid in comparison.
Insects such as tick's, mosquito's, and black-flies are a daily concern. When you literally see 'clouds' of the flying bastards, you know it's time to un-ass the vicinity.
Flame-throwers should be on EVERYONE'S Christmas list.