Yet simplistic predictions that scorching summers, more cyclones and heavier rainfall will therefore follow can be far off the mark. These experts offer a more realistic view. Galaxies in the Young Universe F. Duccio Macchetto and Mark Dickinson Travel back in time for a few billion years, courtesy of high-powered telescopes, and the universe looks like a very different place. By peering at the earliest, most distant galaxies, astronomers are learning how this transformation occurred. The lion, the noble king of beasts, has a sneaky side.
Lions do team up to hunt large prey, rear their cubs and frighten away rivals.
Managing Human Error in Aviation Robert L. Helmreich Errors by flight crews contribute to more than 70 percent of air accidents. During a crisis, the workload for pilots can soar, leading to fatal misjudgments. Fortunately, a training regimen called crew resource management could help teams in the air find their way to safety. Integrins and Health Alan F. Horwitz Integrins are a class of adhesion molecules that glue cells in place. Surprisingly, at a fundamental level, they also regulate most functions of the body.