A study published in the Royal Society B suggests that Neanderthals had larger eyes than we do and that led to their demise.
The BBC reports that more of their brains were devoted to what they were able to see at the expense of higher level processing.
The wonderful work done by scientists such as these is fascinating to, well Neanderthals such as myself. But with each discovery or each new theory posited, I realize how little we actually know. So much of I was taught in school as FACT, has not stood the test of time. Wish some of my teachers who gave me those C grades would show up at a class reunion. Wonder if it is too late to get a grade changed. Probably don’t want to go there best to leave well enough alone.