Photo of the Day

Picture of an emperor penguin wearing a camera strapped to its back and leaning over a hole in the ice
February 11, 2022

Penguin Pictures

Rodney the emperor penguin wears a "Crittercam" on his back in this picture from the August 2007 issue. Crittercam was invented by National Geographic's Greg Marshall to capture audio, video, and environmental data, and has been utilized to study dozens of species around the world.
Photograph by Greg Marshall, Nat Geo Image Collection

Go Further

Subscriber Exclusive Content

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history