Premise: Okay. What I've seen of actually Darwin in the textbook, in my opinion, is actually quite slim. It follows state standards, of course. And, actually, to me, it gives more of a historical context of Darwin than anything as far as what I have read. And I did look at that section, and I looked basically through the book. And it appears to be historical mainly in context of Darwin's time frame and what he did for science.
Hypothesis: The textbook focuses less on the scientific side of Darwin.