I don't read a lot of non-fiction, and I'm about as far away from being a science guy as it is possible to get, but I won a copy of this from Goodreads first-reads program, as it sounded quite interesting. What will happen in the future after man, what is the next species? Unfortunately, the book never really answers that question. It's not until the end of the book that it gets to looking at the future. Before that we get dissertations on (in order): previous mass extinction events; a history of life on earth; other hominid species and how that led to man's (homo sapiens) dominion; agricultural history and how we've developed and changed the soil; disease; changes in the ocean and aquatic life; local ecosystems - can humans survive if many other species vanish? - and water usage in the desert southwest; recovery of life and species after extinction events, using Mount St. Helen's and Krakatoa as microcosm examples; history and loss of large animals (mastodons, etc.); Mars, life on Mars, and the possible colonization of Mars. All interesting enough topics in their own right, but presented in an occasionally dry manner. I found it hard to make connections between them at times (that could just be me and my non-scientific background and mind). Finally, in the last two chapters, the author gets to what the book's subtitle promises and what I've been looking forward to. Here's what I took away from that: human evolution is dramatic, rapid, and ongoing. Global warming/environmental changes will lead to evolutionary changes. Will there be a new species? What will man evolve into? In the distant past, 4 species of hominids existed contemporaneously before homo sapiens outlived and outlasted the others. But what does that really mean? I'm still unclear on the differences between the hominid species (again, maybe just me). Some discussion on artificial intelligence (AI), robots, and uploading of consciousness into some type of cyber realm. (Yeah, the Matrix is mentioned.) If a new species emerges, what will cause it? It seems more likely that humankind will go extinct. What happens after that? That's the speculation I was hoping this book would provide (based on the title and subtitle), but didn't.