News
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Health & MedicineDo cold-water plunges really speed post-workout muscle recovery?
A new study is among the first to look at whether cold or hot soaks help women’s muscles rebound from extreme exercise.
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ArchaeologyNeandertals invented bone-tipped spears all on their own
An 80,000-year-old bone point found in Eastern Europe challenges the idea that migrating Homo sapiens gave the technology to Neandertals.
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OceansBefore altering the air, microbes oxygenated large swaths of the sea
Hundreds of millions of years before oxygen surged in the atmosphere 2.4 billion years ago, swaths of oxygen winked in and out of existence in the ocean.