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In Silicon Valley, zero profit and even zero revenue don't make a company a loser. Tech companies like Snapchat and Twitter, which have not yet turned any profit, can be worth billions of dollars based on future potential alone.

Now is a good time to spot gray whales off the coast of Southern California, but scientists have been seeing an unusually high number of other whales. "The fact that we're getting a chance to see at this time of year fin whales, blue whales, is really a mystery," says a marine biologist.

The event makes its debut in Sochi after a fight that landed in a Canadian courtroom and endured years of setbacks. At trials in Park City, Utah, on Sunday, ski jumper Jessica Jerome, 27, became the first woman to earn a spot on the U.S. Olympic team.

Bloomberg reduced smoking in New York City but failed to match that much copied success with other campaigns, such as one to lower obesity rates by regulating the size of sodas sold in city fast-food restaurants.

The same kind of technology that recommends movies on Netflix or purchases on Amazon is now helping students choose college courses. A new program developed on a campus in Tennessee uses predictive analytics to suggest classes, and is seen as a way to make higher education more efficient.

An explosion Monday tore apart a bus, killing more than a dozen people and injuring many others. It followed Sunday's bombing at a train station in the same city, Volgograd. Suspicion is falling on Chechen extremists who want to create a separate Islamist state.

On Tuesday, Michael Bloomberg ends his three terms as mayor of New York City. His 12 years in office were groundbreaking, locally and globally.

For years, there have been hints that adding cinnamon to your diet can help control blood sugar. And a recent spate of studies adds to the evidence that the effect is real. But if you want to incorporate more of this aromatic spice in your diet, the variety may matter.

Many people watched other people playing video games on the video-sharing site in 2013. But it wasn't all about games; educational videos, particularly those that explain science concepts or use fun animation, were also big hits.

A handful of Silicon Valley entrepreneurs say it's time to turn your finances over to bots. Algorithms can monitor a person's financial behavior better than most advisers, they say, and aren't biased by commissions or complex fee structures.

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