Turns out, the so-called 'junk DNA' in our bodies isn’t just leftover clutter—it’s actually running the show! Scientists just found that ancient viral DNA, especially a bit called MER11, acts like a master switch for turning genes on and off during early development. Even cooler? These viral bits help shape how our brains form and might even explain what makes us different from chimps. Who knew our genetic 'trash' was actually evolutionary treasure? #Science #Genetics #ScienceNews