This is a book that takes a very long time to get around to its point, and when it does finally reach it, doesn't seem to know what it actually wishes to say.
The first half or even two thirds of the book is a recounting of Darwin's struggle around publishing On the Origin of Species, including his interactions with Wallace and how scientific credit was portioned out. We then are presented with a recounting of Huxley's popularization of evolution and some of the more infamous public clashes with opponents of the then-new theory. None of this is presented badly, but it feels like a very long preamble. If you've read much about Darwin, most of this is pretty familiar. If this is your main area of interest, there are good Darwin biographies, including Browne's great two volume biography.
To me, the book's best section is the discussion of how the theory was seen in Germany and the strange politics that became associated with both proponents and opponents. Virulent anti-Semitism long predated Darwin in Germany, but these theories were able to be marshaled in support of eugenic ideas that ultimately came to be an intellectual undergird to the holocaust.
Most of the last third of the book is dedicated fleshing out disputes that happened mainly in academic journals and conferences. There is very little discussion of larger political misuse of Darwin's ideas, which seems like it should have been fertile ground. Instead we end up with a small bore discussion of exactly what topics academics should study and some tsk tsking at those who urge caution at sharing certain scientific results that may be misappropriated by racists to suggest that one race or another has genetic predilections toward crime or higher or lower intelligence, etc.
When all was said and done, I'm not sure whether I agree or not with Shipman's conclusions on academic research, but I certainly felt like we had not really discussed the heart of the matter, the inappropriateness of social Darwinism and continued impact of eugenic ideas that repackage racism in a pseudo-scientific wrapper.