McGill Alumni - Are your genes your destiny? (Not if your mom has anything to say about it) - Rats licked as babies healthier
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When mother rats lick their pups, they leave epigenetic marks on their babies' DNA. Well, perhaps not licking your babies, but holding them close and carried out a study involving 94 healthy children and their parents. Some mother rats spend a lot of time licking, grooming, and nursing their pups. Others seem to ignore their pups. Highly nurtured rat pups tend to grow up to be.