As Valentine’s Day draws near, candy hearts emblazoned with XOXO, as in “hugs and kisses,” remind us that love is in the air. But why XO? Why not AB? Or XY? It turns out that XO, which has been ...
WASHINGTON – For most folks, a nice hug and some sympathy can help a bit after we get pushed around. It turns out that chimpanzees use hugs and kisses the same way — and it works. Researchers studying ...
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