National Geographic had embraced the digital medium with great gusto. And as result, here are the your favorite NatGeo Photo of the Day entrees for 2015. They tallied the shares, likes, views, and other esoteric data on picture popularity, and chose the 20 that you, digital peoples of the internet, liked the most. Have a virtual peek at the best pictures of penguins, ice cracks and more!
More info: demilked.com