THE NEANDERTHALS AMONG US

You never know what you may see from an RV window. The South seems especially rich in remarkable sights: One day as we drove along, minding our own business, we saw a huge billboard advertising a dinosaur museum, and we slowed down to check it out.

As it turned out, the museum was too expensive for us—$24 per person, even for us senior citizens. Good grief! For that price, we could have visited a world-class paleontology museum such as the Field Museum of Natural History in Chicago, or the American Museum of Natural History in New York. More important than the egregious admission price, the museum was anti-science; it was a thinly disguised exhibit about special creation, or the creation of living things as presented in Genesis. We saw no benefit in supporting it, and kept driving.

Some scientists believe God created life; others do not. What nearly all of them agree on is that living things have evolved (changed gradually) since they first appeared on Earth, branching in various directions to form the millions of species that have lived and died over the eons. Evidence from paleontology, anatomy, genetics, embryology, physiology, and  other areas of biology all show similarities among organisms that make sense only if they evolved gradually .

The comic strip Alley Oop is delightfully entertaining. (Oop is a time-traveling Neanderthal who rides through a Carboniferous forest on a dinosaur, battles other cavemen, and so on.) The strip is a pleasant fancy, but of course it is nonsensical. The dinosaurs were wiped out 65,000,000 years ago, millions of years before the Neanderthals appeared. Creationists, though, have tried to insist that all living things were created within 6,000 years, and so humans and dinosaurs actually co-existed. In a hilarious exhibit at one creationist museum, fossils appear to show a dinosaur eating a person.

The creationists have been ridiculed for years, and are thin-skinned enough to have gone through a sort of evolution themselves. Now they call their ideas “intelligent design,” a supposedly scientific theory that is less obviously religious. However, they dodge the question of how there can be a design unless there is a designer. For that matter, what would unintelligent design be?

Back in 1958, just before the centenary of The Origin of Species by Natural Selection, a famous scientist wrote that “a hundred years without Darwinism are enough.” He was appalled that there was still any opposition to a theory that was accepted by the scientific community. And that was more than 50 years ago! There have been amendments to Darwin’s theory of evolution—punctuated equilibrium and the molecular structure of DNA, for instance—but the basic idea of evolution by natural selection has stood the tests of time and of challenges from naysayers.

In recent years researchers have shown that Neanderthals interbred with some groups of modern humans, which means that most of us have some Neanderthal genes. In another sense, though, Neanderthals are all around us—denying evolution, denying climate change, denying science. Will this denial continue for another hundred years? Or will we say this is already more than enough?

I LOVE A MYSTERY

For about fifty years, I have been a mystery addict. It began with spending long evenings in the public library in Evanston, Illinois, which had a vast collection of Agatha Christies and John Dickson Carrs. I read through them in short order. Though a few mystery writers are more than lightweight—Dorothy Sayers especially comes to mind—in most cases I read the books more as puzzles than as literature. I relish watching for important clues, making hypotheses about whodunit, and piecing together the answer before Ellery Queen or Lord Peter Wimsey announces it.

As many scientists have pointed out, their work is often detective-like. They make many observations, watch for facts that don’t fit expected patterns, make and test hypotheses. Over time and many experiments, a broad theory may emerge. Much of my own science writing (mainly for middle- and high school students) emphasizes the mystery-solving aspects of science. One of my favorite—and unfortunately unpublished—books was called Who Killed the Neanderthals?

There is an important difference between detective fiction and science, though: In a well-written whodunit, all the clues are wrapped up neatly by the last page. There is no mystery left to solve. In science, the “detectives” can reach a tentative conclusion as the result of experimentation, but their conclusion is subject to further testing by other scientists, and it may be disproved. In fact, that is the exciting thing about science. New observations and experimental results can lead to new hypotheses. The Neanderthals are a good example: Seen at one time as brutish creatures having no relation to modern humans, they have gone through several reassessments as new fossil evidence and DNA studies have emerged. They may still not be completely understood. And so, I will go on reading about the Neanderthals—sharing the excitement about new clues, wondering whether that particular mystery has finally been solved.