Back in the early 1980s, orthodontist David Marshall, from Syracuse, NY, liked to speculate about what humans would look like 2 million years in the future. Or what "Future Man" would look like, as he referred to our descendants. Based on previous trends in our evolution, he concluded that Future Man will be hairless, big-skulled, small-jawed, and have few teeth.
I was going to say that 'Future Man' sounds like a great name for a comic or TV series. But when I googled the name, I discovered that there already is a Future Man series
Spokesman Review - Jun 15, 1981
Marshall’s version of the future human being is a sleek-featured, diminutive person, much like the creatures seen in many science-fiction movies.
According to Marshall's obituary
Today’s diet of soft, processed foods will take its toll on the human jaw and teeth, which have been diminishing since prehistoric days when our ancestors used their mouths as weapons, in addition to making tough foods palatable, Marshall says.
“Nature has a wonderful way of providing for her needs. Whatever she doesn’t need, she gets rid of,” Marshall says. “Things develop according to function. If you use something, it develops. If you don’t, it disappears.”
Since people today do not use their teeth the way they once did, future people probably will have much smaller, and fewer teeth, Marshall’s prediction indicates. They will be practically hairless and their jaws will diminish as they have for thousands of years, he says. The chin and nose will be more prominent.
The changes Marshall foresees also will give future people a wider range of facial expressions…
He has turned his office into a museum on the development of the human skull, tracing its evolutionary and embryonic progress in exhibits and photographs… One of the exhibits in his personal museum is a line of busts depicting the evolutionary changes in the human skull from prehistoric times to his vision of what people will look like 2 million years into the future…
But even with the possibility of scientific advances influencing evolution, Marshall expresses confidence that his projections cannot be disputed.
“No one is going to disprove me,” he says. “They won’t be around.”
-The Semi-Weekly Spokesman-Review - June 15, 1981
(he died in 2006), the anatomical museum he once had in his dental office was eventually moved to Syracuse University. Although I can't find any record of it there now.
David Marshall, “Changes in the skull—past, present, and future—because of evolution.” Journal of the American Dental Association. Nov 1975.