We all know that the Fryingpan River provides legendary winter fly-fishing, but the upper Roaring Fork is often overlooked by fishermen hungry for powder turns and hot toddies. However, winter ...

Reports Wigglesworth: the carbohydrate-fueled fruit fly, Drosophila, can stay aloft for five hours at a stretch, but it beats its wings 250 times per second, and it burns up 10% of its body weight ...