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Sabor-tooth Psychology: Why Darwinism Can't Explain Religion

  • 2015 Nov 04

If there’s one area of science that shows how ill-equipped naturalism is to make sense of the world, it’s evolutionary psychology—the study of how evolution shaped the way we think, feel, and act. Even among outspoken Darwinists, this field is known for sensationalism and outright nonsense.
Take one study from Newcastle University that claimed to explain why boys prefer blue and girls prefer pink. The scientists’ answer? Because tens of thousands of years ago, our male ancestors had to watch for predators silhouetted against the blue sky, while women had to focus on gathering berries, which are usually pink. I’m not kidding. This was published in a peer-reviewed, scientific journal.
Several of our writers here at BreakPoint have dubbed this brand of pop-science “saber-tooth psychology,” because of the way the tales unfold: “Humans engage in such-and-such activity today because long ago, it gave our apelike forebears a survival advantage against hungry saber-tooth tigers.”
Whether it’s explaining how evolution made us promiscuous, why homosexuality confers a survival advantage, or how rapists are just acting on their genes, the fables that scientists dream up to account for human behavior range from silly to deeply troubling. And media attention creates its own kind of natural selection, aptly summed up as “survival of the most headline-grabbing.”
That’s why you get articles like the one on the popular science news site “Live Science,” explaining how evolution produced religion. See if this sounds familiar: Once upon a time on the African Serengeti, our Australopithecine great-great-grandparents heard a rustle in the tall grass. Those who shrugged it off were frequently killed and eaten by lions. But those who got spooked and ran away survived to pass on their genes.
It’s sabre-tooth psychology alright—just with real lions. But the story continues: Scientists tells us the instinct that led early humans to decide the rustle in the grass was not the wind but a predator, gave rise not only to a population of paranoid primates, but to our belief in the supernatural—and in God!
How? Kelly James Clark, a research fellow at Grand Valley State University in Michigan, explains that this instinct—what he calls a “hypersensitive agency-detecting device”—causes people to see intention behind not only rustling grass, but behind daily phenomena, like the weather, disease, and failed crops. Gradually, humans began detecting agency everywhere, and came to believe that supernatural beings inhabited the water, sky, and earth. Nature came alive with “gods, ancestral spirits, goblins and fairies,” he says, and these formed the basis of religious belief, or what Clark calls “the god faculty.”
So religion today, he concludes, is the product of a suspicious, long-ago rustle in the grass on the east African plain.
C. S. Lewis had a wonderful word for this kind of explanation: “Bulverism.” Instead of confronting an idea like religion on its own merits, he said, a bulverist simply assumes the idea is wrong, then proceeds to explain why people believe it.
Here’s another problem with saber-tooth psychology: As Christian philosopher Alvin Plantinga points out, it assumes too much. If our brains and the thoughts in them evolved for survival value and not for truth value, why should we trust our own ability to understand the distant past? Mightn’t our “monkey minds” deceive us about that, as well as about religion?
So when you hear these kinds of stories, ask yourself what the storytellers are assuming and how those assumptions affect their theory. Remember, when it comes to evolutionary psychology, some science writers wouldn’t know a tall tale if it snuck up and bit them in the tall grass.


BreakPoint is a Christian worldview ministry that seeks to build and resource a movement of Christians committed to living and defending Christian worldview in all areas of life. Begun by Chuck Colson in 1991 as a daily radio broadcast, BreakPoint provides a Christian perspective on today’s news and trends via radio, interactive media, and print. Today BreakPoint commentaries, co-hosted by Eric Metaxas and John Stonestreet, air daily on more than 1,200 outlets with an estimated weekly listening audience of eight million people. Feel free to contact us at where you can read and search answers to common questions.

Eric Metaxas is a co-host of BreakPoint Radio and a best-selling author whose biographies, children's books, and popular apologetics have been translated into more than a dozen languages.


Publication date: November 4, 2015