For more than half a century, millions of acres of land in Alaska have been protected from mining, drilling, and other industrial activities. These wild landscapes are good for the planet: They sequester carbon from the atmosphere and sustain an abundance of animals. But 28 million acres are now in danger of being mined, drilled and developed. We're fighting to protect these pristine, climate-saving landscapes and all those that live there. ❄️ | Center for Biological Diversity

20K views · 329 reactions | The Wolverine's keen sense of smell allows it to more easily find frozen carcasses in the snow for dinner. | National Geographic TV | Facebook

362K views · 490 shares | Caribou may be faster, but what the wolf lacks in speed, it more than makes up for in stamina. | National Geographic Animals | Facebook