I think the content was just too dry- filled with many cited facts leading to the hypothesis of how cooking separated us from other animals- but it was too long and I found my interest waning with each new fact presented.
No- I'm still interested in this genre and recently purchased a similar book that will hopefully be more entertaining while enlightning.
The narrator had a flat voice without much inflection (recognizing that there wasn't much emphasis to be put on the content he was reading).
If you are REALLY interested in this topic then the book will be worthwhile. Otherwise, I suggest you borrow books from the library and research the topic yourself.