At a time when night-singing insects have slipped beyond our notice—indeed, are more likely to be heard as NatureSounds than in a backyard—John Himmelman se

Over the last forty years, scientists have uncovered evidence that if the Universe had been forged with even slightly different properties, life as we know it -

A leading evolutionary thinker, biologist, and medical researcher asks the question: "Could life elsewhere be substantially different from life on Earth?"--and

Ancient peoples understood the growth and healing powers of rocks-now Dr. Callahan has rediscovered that force.