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Mother Nature Network • Valentine’s Day kissing continues odd human...

14

Feb


 Valentine’s Day kissing continues odd human tradition  



Experts say kissing evolved from sniffing, which people did centuries ago as a way of learning about each other.
Experts say kissing evolved from sniffing, which people did centuries ago as a way of learning about each other.
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    “For most of early human history, smell was more important than any other sense for human relationships, said Sheril...
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