Didn't see a grizzly in Yellowstone? Head to Yellowstone Bear World to see grizzly and black bears, along with other animals like bison and moose.
These bison stem from an original population of 25 that survived mass killings. Yet, for the past 17 years, they have been sent to the slaughterhouse.
University of Colorado Boulder astronomer Doug Duncan has chased eclipses all over the world.