Photographer Tom Murphy has documented the park's wildlife for decades. Now, one of his photos will be on a Forever Stamp.

Scientists have uncovered a mysterious behavior among America's bison that could signal profound ecological changes across the nation. A six-year study using GPS collars, satellite imagery and field ...

From their cozy homes in suburban Burlington, children curiously watch their new neighbors through windows and brainstorm nicknames. Earlier this month, with their distinctive brown fur, big heads, ...