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A new study adds to the evidence that among everyday coffee drinkers, the old wives' tale that coffee will lead to dehydration is really just that: a tale. Another study found that caffeine may help to consolidate memories in the short term, but may not help retrieve old memories.

Some analysts say that Nintendo's days are numbered because sales of its new console, Wii U, have been lackluster. But since Nintendo still offers some of the most popular game franchises, the love of Zelda and Mario may keep the company going for a long time.

Even retailers that invest heavily in sophisticated security systems are seeing new vulnerabilities from rogue hackers who are buying software tools on the black market.

The midterm congressional elections are 10 months away. But some political and ideological organizations are already buying ads to criticize incumbents they hope to take down in November, like Democratic Sen. Jeanne Shaheen.

A race is on to save Britain's beloved crimson phone booth, threatened not by habitat loss or climate change, but by the ubiquity of cell phones. The country had 92,000 payphones in 2002; now, it has just 48,000. But devotees are finding new uses for the booths.

The Senate Intelligence Committee has released a new bipartisan report on the 2012 Benghazi attack. The report finds that the attack was preventable. According to the committee, fault lies with the State Department for failing to provide adequate security or heed warnings about a deteriorating security situation. The committee claims that individuals associated with al-Qaida affiliates participated in the attack, but it stops short of saying the attack was pre-planned. The report also does not implicate the "core" al-Qaida leadership.

A new exhibit at the Peabody Essex Museum in Salem, Mass., features a flock of 70 finches and an array of tuned and amplified guitars. As the flock fills the open room, the birds are free to land on the guitars, making music of their own as they move and jump off the instruments.

An aging tree's girth is good for the planet, scientists say, because it helps it suck more carbon dioxide out of the air. "It's as if, on your favorite sports team, you find out the star players are a bunch of 90-year-olds," one ecologist says.

The rare northern spotted owl species faces habitat loss and, now, intruding barred owls. A biologist, and the federal government, have made a difficult decision — killing one owl to ward off the extinction of another.

Lanny and Tracy Barnes competed on the U.S. Olympic team in 2006, and Lanny competed in 2010. This year, Tracy gave her spot on the team to Lanny, who was ill during the selection races and just missed qualifying. "The Olympics are about more than just competing," Tracy says.