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Solving the Easter Island population puzzle

Easter Island, known as Rapa Nui by its inhabitants, has been surrounded in mystery ever since the Europeans first landed in 1722. Early visitors estimated a population of just 1,500-3,000, which seemed at odds with the nearly ...

date18 hours ago in Social Sciences
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New hermit crab uses live coral as its home

A new hermit crab species can live in a walking coral's cavity in a reciprocal relationship, replacing the usual marine worm partner, according to a study published September 20, 2017 in the open-access journal PLOS ONE by ...

date14 hours ago in Plants & Animals
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The right way to repair DNA

Is it better to do a task quickly and make mistakes, or to do it slowly but perfectly? When it comes to deciding how to fix breaks in DNA, cells face the same choice between two major repair pathways. The decision matters, ...

date15 hours ago in Cell & Microbiology
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Tech dreams live or die on startup battlefields

Fearing failure but driven by a chance at Silicon Valley stardom, young entrepreneurs pitch their dreams in mere minutes at startup competitions like TechCrunch Disrupt that ended here Wednesday.

Protected waters foster resurgence of West Coast rockfish

West Coast rockfish species in deep collapse only 20 years ago have multiplied rapidly in large marine protected areas off Southern California, likely seeding surrounding waters with enough offspring to offer promise of renewed ...

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Apple CEO defends 'dreamers' program

Apple CEO Tim Cook defended the government program that protects young immigrants in the U.S. illegally and called immigration the "biggest issue of our time."

How Teotihuacan's urban design was lost and found

Name one civilization located in the Americas that pre-dates the arrival of Europeans. You probably replied with the Aztecs, the Inca or perhaps the Maya. A new paper, published in De Gruyter's open access journal Open Archeology, ...

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