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Scientific American, May 2017 (English)

Sprecher: Mark Moran
Spieldauer: 1 Std. und 37 Min.

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In this issue:

"The New Origins of Technology": 3.3-million-year-old artifacts from Kenya upend the classic story of when and how humans became innovators.

"Strange News from Another Star": Alien technology is probably not causing Boyajian's star to dim mysteriously. But alternative explanations are hard to come by.

"Missing Links": Loss of some DNA during evolution may have helped create big brains and our male-female relationships.

"Schizophrenia's Unyielding Mysteries": Gene studies were supposed to reveal the disorder's roots. That didn't happen. Now scientists are broadening the search.

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