Science Mar 09 Huh? The valuable role of interjections in human conversations Utterances like um, wow and mm-hmm used to be dismissed as irrelevant linguistic detritus. But some linguists now think they play an essential role in regulating conversations, and may be the hardest part of language for artificial intelligence to master.
Science Apr 02 Why people choose to cooperate, according to behavioral science Most people care what others think of them. In many situations, that can be leveraged for the common good.
Science Aug 14 How microbial diversity makes every sourdough different It all starts with a community teeming with yeasts and bacteria — but what’s really happening? Scientists peer into those jars on the kitchen counter to find out.