Fresh Questions About Oxytocin as the 'Love Hormone' Behind Pair Bonding
The "love hormone" oxytocin may not play as critical a role in bonding as previously believed. Removing the oxytocin receptor in animal models still resulted in monogamous mating, attachment, and parental bonding behaviors, although females without the receptor produced milk in smaller quantities. Findings reveal parenting and bonding aren't purely dictated by oxytocin receptors.
Source: neurosciencenews.com