It starts out mildly enough: Heading to work on the subway, you realize you forgot your wallet. No big deal, you think. I’ll borrow money to get home. Soon the lights go out and the train hurtles toward the sky, speeding through the atmosphere. Time passes—it’s hard to tell how long. The subway is...

In a few short months, the sweet scent of thawing soil will have me searching under trees, by streams and in gardens for new life peeking into the frosty air. During winter’s dark days, it’s hard to imagine anyone more excited about spring’s brave first blooms. But just below ground, creatures on a...