Dr. Richard Lenski, an evolutionary biologist at Michigan State University, has been running a long-term experiment on evolution. Indeed, it has been named the LTEE (Long-Term Evolution Experiment). It started back in 1988 and is still running today. It has followed 12 populations of the bacterium Escherichia coli through more than 50,000 generations, examining how environmental stress changes the bacteria’s genetic and physiological characteristics. More than 6 years ago, I discussed how the project was confirming the creationist view of the genome, and it continues to do just that. In addition, it has inspired another experiment that specifically confirmed a creationist prediction while, at the same time, falsifying an evolutionary one.
To understand what has happened, we need to go back to 2008. In that year, the LTEE showed that even though Escherichia coli normally can’t make use of a chemical called citrate when oxygen is present, one of the their populations developed that ability after 31,500 generations of existence.1 As a result, it was dubbed the “citrate plus” population. How did that happen? At the time, no one knew. However, evolutionists thought it was the result of some rare event or combination of events, exactly the kind upon which evolution depends. New Scientist put it this way:
By this time, Lenski calculated, enough bacterial cells had lived and died that all simple mutations must already have occurred several times over.
That meant the “citrate-plus” trait must have been something special – either it was a single mutation of an unusually improbable sort, a rare chromosome inversion, say, or else gaining the ability to use citrate required the accumulation of several mutations in sequence.
Lenski himself was bold enough to write:
So the bacteria in this simple flask-world have split into two lineages that coexist by exploiting their common environment in different ways. And one of the lineages makes its living by doing something brand-new, something that its ancestor could not do.
That sounds a lot like the origin of species to me. What do you think?
Not surprisingly, a recent experiment has shown that the evolutionary predictions of Lenski and New Scientist are wrong. At the same time, it demonstrated that the predictions of both intelligent design advocates and creationists were correct.