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Only human females and a handful of long-lived whales have a lengthy life phase when reproduction ends and the time arrives to pitch in with the grandkids,” Tucker explains in the piece, which is adapted from her newly published book “Mom Genes: Inside The New Science of Our Ancient Maternal Instinct.

This all-hands (or all flippers) approach to ensuring your genetic legacy apparently pays dividends.”It turns out that a grandmother’s help can have a profound impact on a new mother’s well-being, on the success of her pregnancy and even on how her children thrive.

During the pandemic, even those mothers who live close to their own mothers have often been forced to be distant. For many others — like me — who live hours apart, this time has caused us to reconsider why we don’t live close enough to continue to be mothered well into adulthood. It’s not just wishful thinking; as Tucker explains, there’s a science to our sense of need.