For me this is one of those “well, duh!” studies, but I suppose people hadn’t previously realized just how strong the effect could be.
From the 2009 article…
“Not only does the environment an animal is reared in have marked effects on its ability to learn and remember, but also that these effects are inherited. The study suggests that we are not the mere sum of our genes: what we do can make a difference.”
read the full article at Could Living in a Mentally Enriching Environment Change Your Genes?: Scientific American.