Attosecond pulses of light could open electrons’ fast-paced world (p. 16)

Turns out taste is not just for the tongue (p. 22)

Science fails to face the shortcomings of statistics. (p. 26)

Working in mice, scientists find that red and white blood cells arise from different progenitors. (p. 5)

Oceanographers are finding more patches of floating polymers, some up to 20 meters deep. (p. 8)

Blog: Over the past century, whale hunting released 128,000 Hummers’ worth of carbon into the atmosphere (p. 8)

Several months back, a Berkeley undergraduate began witnessing distinctly odd behavior in frogs she was caring for in the lab. At about 18-months old, some frisky guys began regularly mounting tank mates, as if to copulate. Except that their chosen partner was invariably male. He had to be. Because genetically, every animal in the tank was male. (p. 9)

Hatchery fish are unlikely to restore caviar-producing fish populations, a new assessment finds. (p. 9)

Fragments indicate symbolic communication on 60,000-year-old water containers. (p. 10)

College students on Facebook display their real personalities, not reinvented selves, a new study suggests. (p. 10)

Comparing the Titanic and Lusitania disasters suggests that people in a crisis are more likely to maintain social norms if they have longer to react. (p. 11)

South African rocks suggest that the earliest stages of life on Earth were protected from harmful solar radiation. (p. 12)

More than a decade after its debut in a German lab, element 112 is officially named copernicium. (p. 13)

Motherly fights for excrement in one species of dung beetle have favored the evolution of a special female horn. (p. 14)

A study of a rare Norwegian fossil narrows down when polar bears evolved and finds they are closely related to modern-day brown bears in Alaska. (p. 14)

A common test given to patients after the passing attacks appears to miss some cognitive impairments. (p. 15)

Research suggests possible link to abdominal fat (p. 15)

Study finds java drinkers 71 percent as likely to have had stroke as nondrinkers (p. 15)

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Review by Laura Sanders (p. 30)

Review by Bruce Bower (p. 30)

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by Edwin A. Abbott, notes by William F. Lindgren and Thomas F. Banchoff (p. 30)

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(p. 32)