Brain Chain

“It’s not like [your brain] gets a new wrinkle every time you learn something,” Hecht said. “But there have been lots of studies that show your brain changes as you learn a new language or as you learn a new motor skill.”

So it’s quite possible that a Labrador retriever that does the job its kind was bred to do — retrieving birds shot by hunters — might have a brain that looks different from a Lab that retrieves popcorn stuck between couch cushions.

https://www.washingtonpost.com/science/2019/09/02/humans-shaped-dogs-bodies-we-also-altered-their-brains/?tid=pm_pop