A man who got too close to a bison in Yellowstone National Park has been gored and thrown by the animal.  The 34-year-old man from Colorado Springs was walking with his family near Giant Geyser in the park's Old Faithful area on Monday when a bull bison charged the group, park officials said. A video of the encounter filmed by another parkgoer, Rob Goodall, showed the man was behind the bison when it charged other members of his party.  The man ran up and appeared to be trying to