Evolution, like all scientific theories, are always being questioned. Don't you think that any scientist would love to be the one that disproved a major theory like relativity or evolution. Scientists are questioning and testing the theory of evolution every day.
Creationists, however, don't want to play by scientific method rules. Rather than designing and executing experiments to disprove the theory, they cite bible verses and argue from incredulity.
See 486.
That comment cuts both ways. Insofar as proponents of evolution theories rely upon "millions of years" of totally unobserved phenomena for support they, too, remain outside the realm of science in the strict sense. They may call themselves "philosophers of history" or some such if they wish, but they kid no one but themselves in trumping up their interpretive arts as "science" worthy of sole hearing in the classroom.