Human encroachment is a huge threat to sloth populations. That’s why Sam Trull started The Sloth Institute Costa Rica.
The entry deadline has passed and it’s time for the judging to begin. Who will be the 2016 National Geographic Travel Photographer of the Year?
Professor Ningyu Liu at the Geospace Physics Laboratory caught a beautiful lightning show from a recent storm. It’s recorded at 7000 frames per second and the playback speed is 700 frames per second.
There are few times of the year more beautiful than spring. As the weather warms up, green fields and budding trees transform into bright, colorful expanses of daisies, wildflowers, and roses.
Weather Observers Mike Dorfman and Tom Padham took a brief break this morning to enjoy the windy and wintry conditions on the observation deck.
Take a look at the most amazing fossils ever discovered.