National Geographic photographer Keith Ladzinski focused on the positive when it came to forest fires: the solutions people are working on.

In print, online, and in a broadcast series hosted by actor Will Smith, scientists and explorers journey to extreme places and explain curious phenomena. How one image captures 21 hours of a ...

Love them or hate them, hyenas are getting the last laugh Love them or hate them, hyenas are getting the last laugh Dementia has no cure. But there’s hope for better care. Dementia has no cure ...

From cardiovascular disease and obesity to a weakened immune system, the side effects of stress can be life-altering. But there may be a way to prevent those outcomes. This questionnaire—first ...

Is America’s first wilderness area still wild at heart? Is America’s first wilderness area still wild at heart? How did ancient cultures discover iron? It fell from the sky. How did ancient ...

A glass revolution is underway. Spoiler: it bends and bounces A glass revolution is underway. Spoiler: it bends and bounces Photographer Georgi Georgiev has his lens focused on the intimate lives ...

Follow the monarch on its 3,000-mile journey across the continent Follow the monarch on its 3,000-mile journey across the continent Monarchs are actually toxic—and 5 other amazing butterfly ...

For centuries, the Seine River has been Paris’s dumping ground. A billion-dollar cleanup is trying to make it swimmable again. The history of Paris is inextricably linked to the river that flows ...

This story appears in the July 2016 issue of National Geographic magazine. In the digital age, when it’s easy to manipulate a photo, it’s harder than ever to ensure that the images we publish ...