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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Christmas with the leatherbacks

Want to know where Noelle and Darwinia—two intrepid adult female leatherback turtles ( Dermochelys coriacea ) that nest in Gabon—are spending their Christmas?

December 24, 2009 — Larry Greenemeier

Microsoft exits this year $290 million lighter, thanks to Word patent infringement ruling

Patent lawsuits in the technology industry have become about as common as transistors these days. Still, when a tech company the size of Microsoft gets socked with a $290 million fine (as it did on Tuesday) and is forced to make changes to a flagship product like Word within a few months (or stop selling certain versions of the software all together), it does raise a few eyebrows...

December 23, 2009 — Larry Greenemeier

Bird-like dinosaur used venom to subdue prey

A fierce, feathered raptor might have been terrifying enough to small dinosaurs, lizards, birds and mammals living 128 million years ago, but add venom to its arsenal and the threat would be paralyzing—literally...

December 21, 2009 — Katherine Harmon

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Depressed by Our Devices?

Depressed by Our Devices?

How Smartphones Affect Mental Health