Thanks to translocations that began 80 years ago, herds of prehistoric-looking muskoxen once again roam Alaska’s tundra. Could these shaggy Ice Age survivors be emergent stars of the watchable wildlife world?

If the sun shines bright and warm on your skin today, count yourself more fortunate than the people in Alaska’s four arctic national parks. They’ll get a few hours of ambient light if the sky is clear, but there’ll be no warming sun.