If that involuntary action seems to yield a welcomed head-clearing effect, new science suggests that just might be true.

A new study on "contagious urination" only looked at captive chimpanzees, but researchers suspect the phenomenon may also exist in the wild. Kumamoto Sanctuary If you see or hear someone yawn, you ...

Chimpanzees (Pan troglodytes) can "catch" yawns from an android imitating human facial expressions, according to new research from City St George's, University of London. The findings appear to show ...

Yawning is undeniably contagious and hard to resist. Interestingly, in our species, even the mere sound of a yawn can trigger this contagious response, especially when the yawner is someone familiar.

Table 1 For each species and individual, demographic (i.e. sex, age, relationship) and social (i.e. rank and Eigenvector centrality, as a measure of social integration) information. This research was ...

Many of the videos suggest social mirroring, which happens when individuals unintentionally imitate the actions of others, along with empathy, may be why some people yawn when they see others do it ...

Add Yahoo as a preferred source to see more of our stories on Google. So why exactly do we yawn? And why is it nearly impossible to stifle a yawn when someone does it in front of you? Let’s find out.