What do dogs value? Why do they get so excited by their daily walks? And why may dogs of different breeds have different needs? Veterinarian, professor of animal behavior, and dog lover Dr. Paul McGreevy answers these questions and many … Continue reading →

When Deepwater Horizon’s well blew out on April 20, 2010, the resulting explosion claimed eleven lives. Over the next two months, an estimated 200 million gallons of crude oil spewed into the Gulf of Mexico, a haven of biodiversity and … Continue reading →

Why do compass needles point north—but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, … Continue reading →

Your Complete Guide to Moon Facts and Sights in 2012! The first of its kind, The 2012 Moon Almanac packs essential information on all things lunar into one handy annual reference. With this almanac, you’ll have at your fingertips: The … Continue reading →

Before GPS, before the compass, and even before cartography, humankind was navigating. A windswept tree, the depth of a puddle, or a trill of birdsong could point the way home—and, for the alert traveler, they still can. Whether you go … Continue reading →

A visually spectacular guide to the history, science and significance of Venus’s rare transits across the sun—the perfect companion to the transit on June 5, 2012 (the last one until 2117!) A transit of Venus is one of the rarest … Continue reading →