On the open savannas of East Africa, a flock of vulturine guinea fowl looks almost unreal. Bodies are patterned with crisp black and white lines. Chests and backs glow a deep, cobalt blue. Against the ...

Indigenous Pueblo populations in the American Southwest—ancestors of today’s Hopi, Zuni, and Rio Grande Pueblo tribes—typically wove blankets, cloaks, and funeral wrappings out of animal hides, furs, ...

Birds have long been nature’s masters of flight. Their ability to glide, dive, and twist through the air with ease has fascinated both scientists and engineers. But there's more to bird flight than ...

Does each cell in the embryo have a genetically predetermined fate, or are cell interactions important? Researchers have, for the first time, linked the two, showing how the tug of war between cells ...

We heard a thin, high-pitched sound repeated several times while walking up a snow-covered hill in a spruce forest. Could it be a golden-crowned kinglet surviving in these sub-freezing temperatures?