UCEs are conserved structures that are not functionally constrained. Yet there is not so much as a hint of a problem for evolutionary theory.
They were quite the sudden, unanticipated gift in the history of life.
Atheists might say that if Christian scientists understood the full implications of science, they would see that their Christian faith is unsustainable.
Lewis first read Bergson in France during World War I while recovering from shrapnel wounds from the front-lines, and the experience on Lewis was profound.
Giberson and Collins point to the feather as a prime example of a novel feature arising via blind evolution.