A 7 million-year-old practice set our ancestors on the course to humanity, new study finds
When you walk out the door to start your day, you might not know that you are taking part in something that defines us as human -- and something that our ancestors have been doing for 7 million years, according to new research.
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from CNN.com - RSS Channel - App International Edition https://ift.tt/XFH6MVT
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