One reader explains the difficulty of measuring an animal’s eyesight, and why myopia may have benefited ancient humans ...
Explore the oldest roads in the world, from Egypt’s 4,000-year-old Road to Giza to Japan’s Nakasendo Highway. Learn where ...
The writer argues: "Currently, Korea is caught amid an unprecedented storm in many respects. To survive and overcome the crisis, we should be wise like an owl, strong like a bear and courageous like a ...