Terrifying. As described on the cover, this is a very concise history of the forming of the Earth and the various ages it went through; including the evolution of life and the creatures we now know today (don't worry, the dinosaurs are in here too). The book was over before I knew it, but I can still say I learned way more than I knew before; in a very easy to understand way. Gee is talented when it comes to breaking down the science into general terms.

Dinosaurs, meanwhile, are animals that every child has heard of. These hugely successful creatures filled every evolutionary niche, leaving little room for much else, including the early mammals; it wasn’t until the dinosaurs died out that mammals could ‘burst forth like a well-aged champagne, shaken beforehand, and inexpertly corked’. A profusion of fast-evolving and diversifying mammals took over from the dinosaurs. They included what Gee calls ‘a group of leftovers … an assortment of scrappers that included rats, mice, rabbits, and, seemingly almost as an afterthought, the primates’. These small, swift creatures with forward-facing eyes, inclined to curiosity and exploration, would eventually give rise to Homo sapiens. But the emergence of modern humans could so easily not have happened. Around 200,000 years ago, the last survivors of the species were confined to an oasis on the edge of what is now the Kalahari desert. Yet Homo sapiens squeaked through, saved by a period of warming that turned much of the surface of the planet into rich grassland, teeming with game. Life emerged on Earth not long after the planet’s aggregation, writes Gee, and faced its first major challenge about 2.4 billion years ago. Until this point, bacteria and archaea had been confined to the oceans, where they evaded the Sun’s deadly rays, which were not yet tempered by a protective atmosphere. Bacteria eventually learned to harness sunlight to produce energy, with oxygen as a by-product; but as oxygen levels rose, generations of bacteria and archaea that had evolved in its absence were burned alive. Some hundreds of million years from now, Earth will become uninhabitable to even the hardiest organ isms, spelling the final doom for Earth-evolved life—unless, perhaps, some earthlings manage to escape into space first. Meanwhile, the reader is rewarded with a deeper appreciation of our own place in the grand scheme of life, where even the best-adapted species disappear within a time that is minute on the scale of evolution.Alternately admiring and critical, unvarnished, and a closely detailed account of a troubled innovator. Don’t miss this delightful, concise, sweeping masterpiece! Gee brilliantly condenses the entire, improbable, astonishing history of life on earth—all 5 billion years—into a charming, zippy and scientifically accurate yarn. I honestly couldn’t put this book down, and you won’t either." I can honestly say this book terrified me yet gave me hope at the same time. I know you're probably thinking, really? It's a book about the history of the earth, what exactly are you terrified about? Well, for one, it's truly astounding just how many times the earth has nearly wiped out all life in its existence. Readers should be chastened at his conclusion, shared by most scientists, that Homo sapiens is making its habitat—the Earth—progressively less habitable and will become extinct in a few thousand years. Gee writes lucid, accessible prose." At some point before 2 billion years ago, small colonies of bacteria began to adopt the habit of living inside a common membrane.15 It began when a small bacterial cell, called an archaeon,16 found itself dependent on some of the cells around it for vital nutrients. This tiny cell extended tendrils toward its neighbors so they could swap genes and materials more easily. The participants in what had been a freewheeling commune of cells became more and more interdependent.

If you have already watched David Attenborough’s Life/Origin of life or Neil deGrasse’s Cosmos docuseries like me, then this book will act as a fantastic recap of the complex history of life on earth. If you haven’t watched the above-mentioned docuseries, then this book will be an absolute delight for anybody interested in natural history. Also, I highly recommend watching these awesome docuseries in the soothing voice of Mr. Attenborough and Mr. Tyson.Life teems through Henry Gee’s lyrical prose – colossal supercontinents drift, collide, and coalesce, fashioning the face of the planet as we know it today. Creatures are engagingly personified, from ‘gregarious’ bacteria populating the seas to duelling dinosaurs in the Triassic period to magnificent mammals with the future in their (newly evolved) grasp. Those long extinct, almost alien early life forms are resurrected in evocative detail. Life’s evolutionary steps – from the development of a digestive system to the awe of creatures taking to the skies in flight – are conveyed with an alluring, up-close intimacy. About the author Viewed from the kind of wide-angle perspective that Gee opens up, our human presence looks vanishingly insignificant. And yet we have huge significance as the first and only species to be aware of itself. We owe it to ourselves, and to our fellow species, to conserve what we have and to make the best of our brief existence. For People Who Devour Books

My favourite chapter of all, even though it's inevitably speculative, was the one titled The Past of the Future, where Gee takes us through what is likely to happen to life on a future Earth, including its our and its eventual extinction - this has a slightly wistful, but inevitable feel to it and is quite remarkable. This takes us around a billion years ahead from now - so the whole span of the book is more like 5.5 billion years. In the tradition of Richard Dawkins, Bill Bryson, and Simon Winchester—An entertaining and uniquely informed narration of Life's life story.In "A (Very) Short History of Life on Earth", Henry Gee has indeed provided the reader with a short, but broad, introduction to the history of the past "4.6 Billion Years in 12 Pithy Chapters". The chapters are fairly short, very interesting and have the occasional amusing observation. Nothing to snooze at in this book. Some of the commentary in the endnotes (which really should have been footnotes!) are also fairly entertaining and informative. The only unfortunate omission is the inclusion of some sketches or illustrations to show the reader what some of the fascinating creatures might have looked like. I enjoyed reading this book a great deal, and I particularly like Henry Gee's writing style. Another amazing early vertebrate adaptation was the development of air sacs, which first arose in dinosaurs and are still found in birds. This adaptation, which enabled a one-way system of air flow, also doubled as an efficient cooling system for internal organs.