This story appears in the September 2011 issue of National Geographic magazine. Along the northern rim of Kenya's Nairobi National Park, a mysterious array of brightly colored wool blankets can be ...

Hudson’s Bay? More like Hudson’s eBay. Shoppers wanting to score one of Hudson’s Bay’s striped wool blankets will have to shell out a pretty penny to own what some people would describe as ...

If you need to signal for rescue, waving a wool blanket can make you more visible. A brightly colored blanket works best, but even a neutral-colored one can grab attention if you move it in a ...