I'll go ahead and revive this thread from 15 years ago... I'm sure some of these posters have been married, had kids, and maybe even divorced in that time.
Northern Alaska has polar bears.
The South? Just avoid the South.
California and most of the West Coast have rattlesnakes and mountain lions.
Arizona has jaguars and peccaries, too. And Gila monsters.
The Mountain States have brown- and black bears and wolves. And moose.
The Northeast has black bears and moose. And Great Whites and seals (nasty bite).
Everywhere has deer, which are actually dangerous.
You have nowhere to go, really.
Hawaii has no native poisonous snakes. But, sharks, so...