Men with smaller testicles tend to be more involved as fathers, a new study suggests. Itís not yet known if ball size could be used to pre-emptively predict parenting skills though.
Published this week, in the rather aptly named journal PNAS, James Rilling and colleagues at Emory University, America, measured the volume of 55 fathers' testicles using MRI scans.
As this could be viewed as a little subjective and reliant on self reporting the researchers also looked at the mothers' thoughts on the fathers' paternal skills, and they looked at the fathers' brain activity, using fMRI to scan the dads' brains as they looked at photos of their children.
"We're assuming that testis size drives how involved the fathers are, but it could be that when men become more involved as caregivers, their testes shrink."
So, although it's possibly tempting to look at a boyfriend's big balls and infer his future parenting skills will be lacking - this may not be the case. Since most fathers choose how involved they are in their child's upbringing. Author Rilling states:
"It might be more challenging for some men to do these kinds of caregiving activities, but that by no means excuses them,"
Now, I'm sure this study will prove to have some application in the future, but what baffles me is this:
What about mono-balled men ?
Needs some more study, in particular the question of whether testicular size changes once you become an involved father or not. Supercryptid, Tue, 24th Sep 2013