Photo of the Day

Picture of a herd of merino sheep wearing blue plastic coats to protect their wool
April 4, 2022

Wool Coats

The cover story of the May 1988 issue was all about the long and global history of wool. In this photo, merino sheep in Canberra, Australia, wear woven plastic coats to protect their precious wool.
Photograph by Cary Wolinsky, 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