Alaska is the best place to see wild bears. A new mine could change that.

The proposed Pebble Mine threatens the wildlife of the Alaska Peninsula, home to the densest brown bear populations on Earth.

A male brown bear, known locally as Braveheart, fishes for salmon at McNeil Falls, home to one of the largest seasonal congregations of bears on Earth. As many as 80 have been seen at one time in this spot.

Photograph by Acacia Johnson, National Geographic

Read This Next

How long does COVID-19 linger in your body?
New therapies revolutionize treatment for hard-to-heal wounds
The audacious science pushing the boundaries of human touch

Go Further

Subscriber Exclusive Content

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

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

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

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