They're pugnacious and clever, and they have complex social lives—but do capuchin monkeys actually exhibit cultural behaviors? (p. 218)

By dating the mineral deposits on top of cave paintings in Borneo, archaeologists have pushed back the date of earliest human habitation on the island by at least 5,000 years. (p. 147)

Astronomers are closely tracking the ebb and flow of magnetic activity and powerful flares on stars other than the sun. (p. 134)

A new study finds that pregnant women taking nonprescription painkillers such as ibuprofen and aspirin have a higher risk of miscarriage. (p. 115)

In earthquake-prone areas of the United States and elsewhere in the world, debates go on over whether—and how much—to reinforce buildings. (p. 120)

Scientists have a new way of making forgery-proof documents by using laser color printers to embed hologramlike images in a document’s glossy surface. (p. 86)

A gene known as ACTN3 may influence whether athletes are better suited to sprinting or to endurance running. (p. 70)

Splicing a gene from a blight-resistant wild potato into varieties used for consumption could lead to blight immunity for all spuds. (p. 35)