On a cool, foggy, damp spring morning, a loon yodeled. The sound floated through the mist, causing me to pause in disbelief. Then it yodeled again. And one more time. The loon was calling from a small ...

MINNESOTA, USA — "Imagine now, a clear summer evening in the north woods. Above you, the bands of the Milky Way framed by the dark spindly boughs of spruce and fir. And cutting though the stillness ...