Uncategorized
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Science & Society
Installing democracies may not work without prior cultural shifts
Experts often argue over what comes first: democratic institutions or a culture that values democratic norms. A new study supports the culture camp.
By Sujata Gupta -
Anthropology
Homo erectus’ last known appearance dates to roughly 117,000 years ago
New evidence helps resolve a debate over how long ago Home erectus survived in what’s now Indonesia, a study finds.
By Bruce Bower -
Space
A new mission to investigate exoplanets has rocketed into space
The European Space Agency’s CHEOPS satellite has launched on a mission to gather intel on previously discovered planets outside of the solar system.
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Science & Society
These science claims from 2019 could be big deals — if true
Some of this year’s most tantalizing scientific finds aren’t yet ready for a “best of” list.
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Life
Koalas aren’t primates, but they move like monkeys in trees
With double thumbs and a monkey-sized body, an iconic marsupial climbs like a primate.
By Susan Milius -
Archaeology
DNA from 5,700-year-old ‘gum’ shows what one ancient woman may have looked like
From chewed birch pitch, scientists recovered DNA from an ancient woman and her mouth microbes and hazelnut and duck DNA from a meal she’d consumed.
By Sofie Bates -
Earth
Climate change may be why birds are migrating earlier across the United States
Birds are migrating earlier in recent decades in the United States, which could disrupt feeding or nesting cycles.
By Sofie Bates -
Neuroscience
Mice watching film noir show the surprising complexity of vision cells
Only about 10 percent of mice’s vision cells behaved as researchers expected they would, a study finds.
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Science & Society
Top 10 stories of 2019: A black hole picture, measles outbreaks, climate protests and more
Science News' top stories for 2019 include the first picture of a black hole, a quantum computing milestone and CRISPR's first U.S. clinical trials.
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Health & Medicine
In 2019, a ketamine-based antidepressant raised hopes and concerns
Ketamine and related molecules might ease severe depression, but the drugs come with baggage.
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Animals
A year of big numbers startled the world into talking about nature
One million species are at risk. Three billion birds have been lost. Plus surges in Amazon burning.
By Susan Milius -
Health & Medicine
Vaping’s dangers loom large amid more than 50 U.S. deaths this year
Lung injuries and deaths linked to vaping in 2019 are a sobering indication of the dangers of e-cigarettes as teen use continues to rise.