The topic of this book — evolutionary biology from the point of view of the importance of locomotion — is fascinating, and I can’t actually point to anything about the writing or structure that bothers me. I just found that I didn’t enjoy it. Part of that is probably because I’m not interested in the physics, and though I think HOX genes are fascinating, I’m already aware of them and the homology in them between species.
I think some of the sections on the physics of motion genuinely dragged a little; if you’re into physics, it’s nothing new, and if you’re not, then it’s not exactly the most fascinating stuff. It’s an interesting topic, and Wilkinson writes pretty clearly, so that might be a personal thing.