pair bonding

(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) - A blast of oxytocin nasal spray can turn a nerd into a potential playa—but only if a guy is "socially awkward" to begin with, scientists have found. Researchers discovered that the chemical—know as the "love hormone" for its ability to increase empathy and bonding, particularly between...

(Newser) - Some men may be hard-wired to form strong marital bonds and others more genetically likely to divorce—or never marry, according to a new study. Researchers have found that men with a variant of a gene linked to a hormone released during sex were less likely to develop strong emotional...