Mother bear rushes to aid of cubs caught in waterfall
August 12, 2016, 10:09 a.m. by Noel Kirkpatrick
This mother bear can't look away even for a moment as her cubs slide down waterfalls in Katmai National Park.
There'll be no human-sheep mingling when the Bark Ranger is on duty
July 21, 2016, 3:51 p.m. by Jenn Savedge
Gracie may only be 2, but she runs a tight ship.
Endlessly starry sky shimmers over Dry Tortugas National Park
July 18, 2016, 6:10 a.m. by Catie Leary
Located 70 miles from Key West, this national park boast some of the darkest skies on the East Coast.