Birds were never far from Thoreau’s mind. They wing their way through his writing just as they did through his cabin on Walden Pond, summoned or dismissed at

Branka Arsi shows that Thoreau developed a theory of vitalism in response to his brother s death. Through grieving, he came to see life as a generative force in

Four billion years in the palm of your hand, Relics: A History of the World Told in 133 Objects is the story of our planet as you’ve never seen it before. The

On any night in early June, if you stand on the right beaches of America’s East Coast, you can travel back in time all the way to the Jurassic. For as you wat