High in the Peruvian Andes, a serrated stripe of pits cuts across a barren hillside, so regular and extensive that early ...

For America to function, we need to put people in charge again. Americans have always been “jealous of authority,” as Alexis de Tocqueville put it. The constitutional debates turned on whether the ...

Possible factors in the extinction of many large animals include include hunting and climate stability since the last ice age ...