August is an important month for sunflowers—those gigantic, bright-yellow flowers with brownish, round seed heads bordered by radiating yellow ligules...
The Grand Canyon exposes layer after layer of sedimentary rock stacked one atop the other like vast, multicolored pancakes in the earth. Other cliff...
When people think of Neanderthals, an evolutionary image of primitive cave men might come to mind. This is bolstered by the perception that they looked...