Rebecca Martinez en Yellowstone Tourists Warned To Watch For Bears With summer vacations underway, millions of visitors are heading to Yellowstone National Park to marvel at the scenery and wildlife. Bears in and around the park have killed four people over the last two summers, and park officials are warning visitors that Yellowstone is a wild place. Mon, 18 Jun 2012 11:05:00 +0000 Rebecca Martinez 18752 at