Uncategorized
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Archaeology
First settlers reached Americas 130,000 years ago, study claims
Mastodon site suggests first Americans arrived unexpectedly early.
By Bruce Bower -
Environment
‘Fossil’ groundwater is not immune to modern-day pollution
Ancient groundwater that is thousands of years old is still susceptible to modern pollution, new research suggests.
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Health & Medicine
Faux womb keeps preemie lambs alive
A device can keep premature lambs alive for a month in womblike conditions.
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Humans
Homo naledi’s brain shows humanlike features
South African Homo species had small but humanlike brain, scientists say.
By Bruce Bower -
Archaeology
Oldest evidence of patterned silk loom found in China
Chinese finds offer earliest look at game-changing weaving machine.
By Bruce Bower -
Animals
Beetles have been mooching off insect colonies for millions of years
The behavior, called social parasitism, has been going on for about 100 million years.
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Astronomy
No long, twisted tail trails the solar system
The bubble that envelops the planets and other material in the solar system does not have a tail, new observations show.
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Physics
Gamma-ray evidence for dark matter weakens
Excess gamma rays are still unexplained, but they might not come from dark matter.
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Anthropology
Ötzi the Iceman froze to death
Copper Age Iceman froze to death, with shoulder and head damage.
By Bruce Bower -
Particle Physics
Collider data hint at unexpected new subatomic particles
A set of particle decay measurements could be evidence for new physics.
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Life
Immune cells play surprising role in steady heartbeat
Immune system cells called macrophages help heart cells rhythmically contract, maintaining the beat of mice’s hearts.
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Earth
50 years ago, continental drift began to gain acceptance
Half a century later, plate tectonics is well-established but still an active field of research.