In the frozen reaches of Greenland, a humble dog sits beneath a sky smeared with pale sun. Its breath makes tiny clouds in the cold air. Its paws, broad and calloused, press into the snow. This is the ...

Long before the familiar lions and cheetahs roamed the open savannas, there was a cat whose world looked very different. Imagine a dense, tangled forest, sunlight barely filtering through the canopy, ...