Good Study, But They Go Beyond the Science
Take for example the question of human facial variability. Our faces are remarkably variable and unique, far more than most other animal species. Also, our facial traits are more variable than other human traits.
Now a recent evolutionary study explains why. The evolutionists discovered that we have high facial variability because we evolved to have high facial variability. After all, the facial variability was matched by genetic variability. Amazing.
As one of the authors explained:
Our study now shows that humans have been selected to be unique and easily recognizable. It is clearly beneficial for me to recognize others, but also beneficial for me to be recognizable. Otherwise, we would all look more similar.
In other words, high facial variability evolved because it was selected for. And why was it selected for? Because it is beneficial. And why is it beneficial? Because otherwise, we would all look more similar.
If that was not clear, the other author add this:
The idea that social interaction may have facilitated or led to selection for us to be individually recognizable implies that human social structure has driven the evolution of how we look.
In other words, high facial variability evolved because human social structure drove the evolution of high facial variability.
It is all one big tautology. It evolved because it evolved. Studies like this are then cited as examples of the great explanatory power of evolution.
Let’s stick to the science.