Bumblebees use nicotine to fight off parasites

Researchers from Queen Mary University of London (QMUL) and Royal Holloway, University of London (RHUL), gave bumblebees the option to choose between a sugar solution with nicotine in it and one without. Those bees infected ...

Smart Spending: Why investors are applauding Amazon earnings

Amazon.com Inc.'s fourth-quarter earnings roundly beat analyst expectations, sending the Seattle e-commerce giant's stock soaring 11 percent in premarket trading Friday. Here's a closer look at what investors applauded and ...

Time Warner boosts annual guidance

Time Warner is raising its guidance for the full year, boosted by a tax settlement and better-than-expected third-quarter results driven by strong subscription revenue from its Turner and HBO units.

Twitter shares sink on worries about usage

Shares in Twitter sank more than 12 percent Tuesday as disappointing user numbers overshadowed a doubling of income in its third quarter and sparked several analyst downgrades.

UnitedHealth tops 3Q expectations, raises forecast

UnitedHealth Group's third-quarter earnings inched up 2 percent but that was enough to help the nation's largest health insurer trump Wall Street expectations and raise its 2014 forecast for the first time this year.

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