Half way through her book “Scatter, Adapt, and Remember”, Annalee Newitz states that her goal “is to get us off this crowded planet and into space.” I don’t think she achieves her goal. I wasn’t convinced we need to get off our beautiful blue world (at least for the next billion years or so), but it’s a fun romp and worth reading.
Newitz starts with a review of the history of mass extinctions in the last 2.5 billion years, such as the Oxygen Apocalypse (which may be unfamiliar to readers), the Permian Great Dying, and the famous demise of the dinosaurs. She notes that mass extinctions are usually defined in terms of species going extinct. Even with such a drop in diversity, the number of individual creatures may (or may not) remain high. Reasons why some genetic lines survived are often speculative, but if you enjoy natural history, this is an interesting section of the book.
In the second part of the book, Newitz gets closer to home. She discusses the human genus, Continue reading