News
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ArchaeologyThis theory suggests few workers were needed to cap Easter Island statues
A small workforce may have put huge stones on the heads of Easter Island statues.
By Bruce Bower -
AnimalsBees join an exclusive crew of animals that get the concept of zero
Honeybees can pass a test of ranking ‘nothing’ as less than one.
By Susan Milius -
Planetary ScienceCuriosity finds that Mars’ methane changes with the seasons
The Curiosity rover found seasonally changing methane in Mars’ atmosphere and more signs of organic molecules in an ancient lake bed.
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GeneticsWhy using genetic genealogy to solve crimes could pose problems
Rules governing how police can use DNA searches in genealogy databases aren’t clear, raising civil rights and privacy concerns.