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(Newser) - It's long been observed that mothers tend to cradle their infants on their left side, and this has long been at least informally attributed to handedness (so that right-handed mothers have the right hand free). Now researchers report in the journal Nature Ecology & Evolution that "positional bias"...

(Newser) - People prefer to listen with their right ears and are more giving when addressed from that side, LiveScience reports. An Italian study conducted in nightclubs shows that almost three-quarters of people observed listen with their right ear. Moreover, the researchers cadged significantly more cigarettes when they approached clubgoers on the...