Evolution is not kind to older dads, a new research suggests. University of Göttingen in Germany researchers found that older fathers end up having fewer grandchildren. Apparently, mutations that appear in old age are transferred to the offspring.
A study has shown a trade-off between mating prowess and parenting involvement – in other words, men with smaller testicles appear to be better fathers. Not only are fathers with smaller testicles more involved when it comes to taking care of their offspring, but their brains are also more responsive when they see picutres of their children – which seems