A nonfiction book that reads like fiction as it tells the story of the dinosaurs -- from their development to their reign, to what came after the devastating asteroid.

This was such an eye-opening book. Learning about how the dinosaurs spent their last days was amazing to me. The book flowed at just the right pace. I loved how well this book was put together. So much information that I didn't know before. I am currently reading this book to my son for homeschooling, and it has really helped him understand so much.

The author presented a harrowing ride through time that really gave perspective on not only the last days of the dinosaurs but the birth of mammals in the world that we live in. Presented in a way that was easy to read and engaging I felt that the book was overall a success and would recommend it to others.

If you love learning about dinosaurs this book is for you. What's great is that there's so much information out there that even if you read other books about the history of dinosaurs, there's always more to learn.

In this book, Black covers the demise of the Age of Dinosaurs through the Rise of the Mammals with a blend of science and speculation. The book posits that the dinosaurs were essentially wiped out in one day by an asteroid and goes on to explore what this might have looked like for the flora and fauna of the world from the actual day of impact to one million years after the impact. It is clear that the author absolutely adores dinosaurs and Black's passion shines through in the writing. I learned so many interesting things about this prehistoric time of our planet that gave me a broader perspective of what it means to be a human walking the earth today. My main criticism is that at times, particularly the last third or so of the book, Black tends to go off on unfocused streams of consciousness type writing that gets a bit wearisome. I found myself wishing Black would just tighten up the writing a little and get to the point. My other critique is that the author self-discloses about their own journey as a transgender individual. I have absolutely no problem with this topic, but just felt that it did not belong in this particular book. It is also hard to discern where the science of the topic ends and the speculation begins. However, I do recommend this as a rather riveting and relatively fresh perspective on a topic that has been extensively covered for decades. For that alone, I think the author deserves two thumbs up!

I was fascinated by much of this narrative history of the last days of the dinosaurs and the time after their extinction. Some parts felt a bit slow and redundant, but there was so much that was interesting that I still loved it. I switched back and forth between the book and the audiobook and would recommend both.

As just about any child can tell you, roughly 65 million years ago a nearly ten-mile-wide asteroid crashed into the earth in the Yucatan, unleashing planet-wide firestorms, geography-changing tsunamis, and years of acid-rain and dark days. In short, it was not a good day for Planet Earth. Or for the more than 75% of animal species wiped out by the impact, including, of course, its most famous victims, the dinosaurs. In The Last Days of the Dinosaurs, Riley Black gives a wonderfully evocative and vivid accounting not just of those horrible days following the asteroid’s impact, but of life’s slow recovery during the following million years, making the book, in Black’s words, not a “monument to loss [but] an ode to resilience.”

Her particular focus is on the Hell Creek area of the western US as it is one of the most explored sites as well as one of the most plentiful when it comes to fossils, but Black ranges widely both in place and time, offering up a truly global perspective on the disaster. And as noted, does so in vivid prose — a rich, vibrant evocation of setting and species that reads more narrative than informational, as in this passage:

All is calm on this morning. The sun is still low, casting golden light over the marshes and strands of trees. The rex continues her aimless patrol … Insects stridulate and sing from the trees. Crocodiles and odd croclike copycats called champsosaurs snap at fish and small turtles in the weed-choked swamps. Fuzzy mammals chitter at each other from their burrows and tree branches … Every morning begins with a chorus of birds and pterosaurs all talking to members of their own species … As the midmorning sun begins to erase the long shadows of morning, the rex steps through a strand of dawn redwoods growing by a small pond and dips her head down to drink.

Chapters are chronologically arranged, with increasing gaps of time between them:
• Before Impact
• Impact
• The First Hour
• The First Day
• The First Month
• One Year After Impact
• One Hundred Years After
• One Thousand Years After
• One Million Years After

Each chapter has a brief addition that shifts the gaze from Hell’s Creek to other areas and ecosystems such as eastern Utah, the North Atlantic, Antarctica, India, and New Zealand. The level of detail is both precise and plentiful, as for instance when Black discusses how it wasn’t simply the size of the asteroid that created such massive destruction but the combination of variable such as its speed, the angle it struck at, and where it struck. While some of what Black covers is by nature going to be speculative — “inferred from hypotheses and available evidence” — most of it is based solidly in fact. For those wondering which is which, Black includes an appendix “explain[ing]what’s fact and what’s hypothesis or invention.” She also adds a conclusion which brings a welcome personal touch to the tale, touching on a hike to see the iridium layer (the “smoking gun” for the asteroid impact theory), the way she cannot fully explain “why I ache for these creatures the way I do,” how “the years I’ve spent as a transgender woman have affected my perspective.”

One of my favorite aspects of this overall excellent work of non-fiction is how Black doesn’t simply focus on the dinosaurs, or even on other species such as birds or mammals (though she does of course cover both), but takes a more holistic view, examining the complex interweavings of entire eco-systems. The animals yes, but also the insects, the plants the climate, etc.

Always engaging, sometimes lyrical, at all times compellingly informative, The Last Days of the Dinosaurs is a stellar example of non-fiction writing at its best. When Black closes the narrative section by noting that “life, resilient and strange, continued, the beginning of another day in the new Age of Mammals,” I found myself picturing a sequel to this book: “The Continuing Days of the Mammals.” Here’s hoping . . .

"The disaster goes by different names. Sometimes it’s called the end-Cretaceous mass extinction. For years, it was called the Cretaceous-Tertiary, or K-T, mass extinction that marked the end of the Age of Reptiles and the beginning of the third, Tertiary age of life on Earth. That title was later revised according to the rules of geological arcana to the Cretaceous-Paleogene mass extinction, shorted to K-Pg. But no matter what we call it, the scars in the stone tell the same story. Suddenly, inescapably, life was thrown into a horrible conflagration that reshaped the course of evolution. A chunk of space debris that likely measured more than seven miles across slammed into the planet and kicked off the worst-case scenario for the dinosaurs and all other life on Earth. This was the closest the world has ever come to having its Restart button pressed, a threat so intense that—if not for some fortunate happenstances—it might have returned Earth to a home for single-celled blobs and not much else."
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"The loss of the dinosaurs was just the tip of the ecological iceberg. Virtually no environment was left untouched by the extinction, an event so severe that the oceans themselves almost reverted to a soup of single-celled organisms"
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This is a story about two things, Earth’s Big Bang and evolution. K-Pg (pronounced Kay Pee Gee - maybe think of it as KFC with much bigger bones, where everything is overcooked?) marks the boundary between before and after Earth’s own Big Bang, manifested today by a specific layer of stone in the geologic record.

Ok, yes, I know that the catastrophic crash landing of the bolide, a seven-miles-across piece of galactic detritus, most likely an asteroid, that struck 66.043 million years ago, give or take, was not the biggest bad-parking-job in Earth’s history. An even bigger one hit billions of years ago. It was nearly the size of Mars, and that collision may have been what created our moon. Black makes note of this in the book. But in terms of impact, no single crash-and-boom has had a larger effect on life on planet Earth. Sure, about 3 billion years ago an object between 23 and 36 miles across dropped in on what is now South Africa. There have been others, rocks larger than K-Pg, generating even vaster craters. But what sets the Chicxulub (the Yucatan town near where the vast crater was made, pronounced Chick-sue-lube) event on the apex is its speed and approach, 45 thousand mph, entering at a 45-degree angle. (You wanna see the fastest asteroid ever to hit Earth? Ok. You wanna see it again?) It also helps that the material into which it immersed itself was particularly likely to respond by vaporizing over the entire planet. An excellent choice for maximum destruction of our mother. And of course, its impact on life, animal life having come into being about 800 million years ago, was unparalleled. In the short term, it succeeded in wiping out the large non-avian dinosaurs, your T-Rex sorts, Triceratops grazers, brontosaurian browsers, and a pretty large swath of the planetary flora as well, burning up much of the globe and inviting in a nuclear winter that added a whole other layer of devastation. Aqueous life was not spared. You seen any mososaurs lately? Even tiny organisms were expunged en masse. (Cleanup in aisle everywhere!)

Here’s what the Earth looked like just before, just after, and then at increments, a week, a month, a year, and on to a million years post event. It is a common approach in pop science books to personalize the information being presented. Often this takes the form of following a particular scientist for a chapter as she or he talks about or presents the matter under consideration. In The Last Days… Black lets one particular species, usually one individual of that species per chapter, lead the way through the story, telling how it came to be present, how it was impacted by the…um…impact, and what its descendants, if there would be any, might look like. She wants to show why the things that were obliterated came to their sad ends, but also how the things that survived managed to do so.

But as fun and enlightening as it is to track the geological and ecological carnage, like an insurance investigator, (T-Rex, sure, covered. But those ammonites? Sorry, Ms. Gaea, that one’s not specified in the contract. I am so sorry.) is only one part of what Riley Black is on about here. She wants to dispel some false ideas about how species take on what we see as environmental slots.

Some folks believe that there are set roles in nature, and that the extinction of one actor (probably died as a result of saying that verboten word while performing in The Scottish Play) leads inevitably to the role being filled by another creature (understudy?) As if the demise of T-Rex, for example, meant that some other seven-ton, toothy hunter would just step in. But there is no set cast of roles in nature, each just waiting for Mr, Ms, or Thing Right to step into the job. (Rehearsals are Monday through Saturday 10a to 6p. Don’t be late), pointing out that what survived was largely a matter of luck, of what each species had evolved into by the time of the big event. If the earth is on fire, for example, a small creature has a chance to find underground shelter, whereas a brontosaurus might be able to stick it’s head into the ground, but not much else, and buh-bye bronto when the mega-killer infrared pulse generated by you-know-what sped across the planet turning the Earth into the equivalent of a gigantic deep fryer and making all the exposed creatures and flora decidedly extra-crispy.

Black keeps us focused on one particular location, Hell Creek, in Montana, with bits at the ends of every chapter commenting on things going on in other, far-away parts of the world, showing that this change was global. When the impact devastates the entire planet, it makes much less sense to think of the specific landing spot as ground zero. It makes more sense to see it as a planet-wide event, which would make the entire Earth, Planet Zero. It was not the first major planetary extinction, or even the second. But it was the most immediate, with vast numbers of species being exterminated within twenty-four hours.

I do not have any gripes other than wishing that I had had an illustrated copy to review. I do not know what images are in the book. I had to burrow deep underground to find the pix used here. I expect it is beyond the purview of this book, but I could see a companion volume co-written by, maybe, Ed Yong, on how the microbiomes of a select group of creatures evolved over the eons. For, even as the visible bodies of critters across the planet changed over time, so did their micro-biome. What was The Inside Story (please feel free to use that title) on how the vast array of bugs that make us all up changed over the millions of years, as species adapted to a changing macrobiome.

I love that Riley adds bits from her own life into the discussion, telling about her childhood obsession with dinosaurs, and even telling about the extinctions of a sort in her own life. What glitters throughout the book, like bits of iridium newly uncovered at a dig, is Black’s enthusiasm. She still carries with her the glee and excitement of discovery she had as a kid when she learned about Dinosaurs for the first time. That effervescence makes this book a joy to read, as you learn more and more and more. Black is an ideal pop-science writer, both uber-qualified and experienced in her field, and possessed of a true gift for story-telling.

Also, the appendix is well worth reading for all the extra intel you will gain. Black explains, chapter by chapter, where the hard science ends and where the speculation picks up. Black incorporates into her work a wonderful sense of humor. This is always a huge plus!

Pull up a rock in the Hell Creek amphitheater. Binoculars might come in handy. An escape vehicle (maybe a TVA time door?) of some sort would be quite useful. Get comfortable and take in the greatest show on Earth (sorry Ringling Brothers) There literally has never been anything quite like it, before or since. The Last Days of the Dinosaurs a joy to read, is one of the best books of the year.

"From the time life first originated on our planet over 3.6 billion years ago, it has never been extinguished. Think about that for a moment. Think through all those eons. The changing climates, from hothouse to snowball and back again. Continents swirled and bumped and ground into each other. The great die-offs from too much oxygen, too little oxygen, volcanoes billowing out unimaginable quantities of gas and ash, seas spilling over continents and then drying up, forests growing and dying according to ecological cycles that take millennia, meteorite and asteroid strikes, mountains rising only to be ground down and pushed up anew, oceans replacing floodplains replacing deserts replacing oceans, on and on, every day, for billions of years. And still life endures."

Review posted – May 13, 2022

Publication date – April 26, 2022

I received an ARE of The Last Days of the Dinosaurs from St. Martin’s Press in return for working my ancient, nearly extinct fingers to the bone to write a review that can survive. Thanks, folks.

Honestly, I was really hoping to like this book, but after the first couple of chapters, I had a really tough time continuing reading. There were still some interesting parts though.

Thank you to NetGalley and the publisher for this ARC!

A perfect non-fiction that reads like fiction and is completely wonderful. The imagery, the attention to detail, and imagination. Riley Black's passion for dinosaurs, K-Pg and all things included leap off the page and into the hearts of the reader.

"...Hell Creek is perhaps the best known of any dinosaurian habitat. It's often both our introduction to the dinosaurs' world and the backdrop for their last great act-overture and finale all in one."

I MEAN COME ON! I have highlighted this book so much and I can't wait for my physical copy to add notes to and just re-read it.

I'm a dinosaur nerd. I've gone to see Sue the T. Rex at the Field Museum in Chicago so many times. I have been lucky enough to tour behind the scenes as a child and got my very own fossil!

So when I saw this book I knew I had to have it. I saw that it was publishing soon and thought, "If I don't get it then I'll just buy the book.". Well I LOVED this book. And I bought a hard copy.

Dinosaurs grabbed me, as usual, when I was a kid, but I wouldn’t say that my fascination has endured as it has with some. Nevertheless, at some point last year, I had a moment where I decided to seek out more information on these creatures and their extinction. This is not the first book I added to my to-read list, but it happens to be the first book I’ve read, mostly thanks to getting an eARC from NetGalley and St. Martin’s Press. The Last Days of the Dinosaurs wasn’t what I was expecting, yet it was a pleasant surprise.

Have you ever watched one of those “documentaries” on Discovery Channel that are more like recreations? It starts with an asteroid hurtling towards Earth, and then there are computer-generated sequences of dinosaurs running for cover while a narrator in a refined British accent explains how they are all about to die. That’s what’s going on here. Riley Black narrates the extinction of the non-avian dinosaurs (and many other species). She chooses a main character for each chapter, a Triceratops, Edmontosaurus, or sometimes even a plucky mammal perhaps distantly related to us. Then she uses that focal point to explore changes to the environment and the evolutionary adaptations and accidents that contributed to some species surviving and others … well, not.

That is the crux, of course: we think of the extinction event as “the end of the dinosaurs,” and it was … but it was also the beginning of the Age of Mammals. Without that asteroid, then in all likelihood there wouldn’t be us. Moreover, Black correctly situations this mass extinction on a continuum of other such extinctions throughout the history of life on Earth—each extinction altering the balance enough to allow different types of life to take hold in ways never before seen. So while it probably sucks from the perspective of a species going extinct, these extinctions are, in the end, part of the natural cycle. Also, the dinosaurs had a pretty good run—orders of magnitude longer than we humans have been around—so I don’t feel that sorry for them.

At first, Black’s decision to narrate events without any reference to how we might know, for example, that dinosaurs used trees as back-scratching posts, annoyed me. I like the story of how. I want to understand how the human ingenuity that is the scientific method led to the knowledge we have of events millions of years in the past. That is what I think is so cool.

Fortunately, Black did something clever. After the conclusion of the book (I was surprised to run into it only 70 percent of the way in), there is a lengthy appendix where she goes, chapter-by-chapter, over the “how” of each event. So if you are a stickler like me, don’t throw the book out after the first couple of chapters: stick with it, and you will be rewarded!

Indeed, one of my first thoughts as I was reading the book and ran across phrases like “lush verdue” was, “Oh, Riley Black can write.” I say this because there is a difference between a competent science communicator and a writer, and Black is both of these things. So that, in turn, makes the choice to split the narrative from the scientific explication even more palatable: as I said above, reading the first part of this book is very much like watching a recreation documentary. It’s compelling in a way that perhaps mixing the two wouldn’t have been. So while the choice irked me at first, I not only have come around, but I’m fully in favour of it simply because Black has the writing skills to back it up.

I learned a lot from this book too. Paleontology has come a long way since I was a kid. I had heard the news that even non-avian dinoasurs probably had feathers, or at least a fuzz approaching feathers. I’ve followed some cool announcements about estimates of T-rex populations, etc. But they never really come back to dinosaurs in school after that initial fascination as a kid, so there was a lot I didn’t know. For example, I was under the impression that the death of most non-avian dinosaurs was a gradual, drawn-out process following the impact event itself. Black marshals evidence that disagrees: according to some studies, it’s more likely that the infrared pulse from the impact fried pretty much all organic life on the surface of the planet within minutes. That is to say, the dinosaurs died very quickly, with only a few holdouts under the water or the ground to represent their species for the remainder of their lives. So that was new to me. Similarly, Black’s telescoping orders-of-magnitude approach to chapters—a minute after, a day after, a month after, a year after, a hundred years after, etc.—helped me wrap my head around the time frame of the recovery of life.

Beyond informing us about the extinction of non-avian dinosaurs, this book has a lot to teach us about the ways in which ecosystems interact. Black spends a great deal of time focusing on the complex interconnections among creatures, from the relationship between pollinators and flowers or seedcones and birds to the roles played by apex predators like T-rex, brought low more often through the smallest micro-organisms than through a challenge from another dinosaur. I think we humans often have this tendency to think very discretely, and Black’s writing really encourages us to see the dinosaurs in a holistic way, as part of this vast tapestry of life, rather than as an entirely different type of life form.

As a final aside, I had the pleasure when reading the conclusion of learning that Black is, like me, a trans woman (and, like me, transitioned in adulthood). I’m not saying I like the book more for that, but it was really like a cherry on top of this reading experience, seeing more of us out there, thriving, writing about our passions. That’s the future I want.

So, if like me you are having one of those random urges to learn a particular topic, and that topic happens to be dino-related, I recommend this book!

Thank you to Netgalley, Macmillan audio and St. Martin’s Press for the ebook and audio ARC of this! I switched back and forth between formats while reading.

This was super fascinating and I loved how immersive it was. Non-Fiction can run the risk of making even the most interesting topics seem dry and removed from the reader, but this did not have that problem. The tone was perfect, the facts interesting, and the pacing and organization were just right. Definitely recommend for any dinosaur fans or people wanting to dip their toes into non-fiction.

I received a copy of this book from Netgalley in exchange for an honest review.

I was so excited to get this. I love reading about dinosaurs and learning new things about them. It was informative and entertaining and I loved the little stories about the dinosaurs that kind of gave them a realness instead of just a scientific approach. I love dinosaurs but science was not my best subject in school. I do wish that there had been some pictures in the book though, just to give some more life to the dinosaurs.

I'm looking forward to adding a physical copy of this to my collection of books.

"It's both death and birth, the end and the beginning, an inflection point that carries continuity through the middle."

The Last Days of the Dinosaurs tells a tale of survival and evolutionary history beginning with right before the K-Pg Extinction to roughly current day, without spending too much time on the "what-ifs". In a sense, it gives a similar feel as the Walking with Dinosaurs documentary. The author combines what we do know with creative imaginings based on science to reconstruct dinosaur behavior and their last days. After their extinction, the author continues to use this method with various flora and fauna in time intervals after the event. I love dinosaurs, but I did really enjoy this focus on other species as well.

Each chapter makes sure to give a brief look at what life on Earth might have been like at that time, while discussing the survival (or not) of different species and the science behind who survives the drastic changes and who doesn’t. I have always been fascinated by dinosaurs but haven't read as much on the mammals and birds who came after- this has piqued my curiosity and I will be seeking out more material to consume.

Some points are a little repetitive, but each chapter is very fascinating in how life came back after such an event, and the incredible process that is evolution, without getting too science technical or specific. I also recommend reading the Appendix for insight to how Riley Black combined fact with creative speculation and why.

Overall, this is an accessible read that is very informative and fascinating, and I highly recommend this to anyone interested in the extinction of the dinosaurs, or the K-Pg Extinction event, and how life recovered and changed after.

Thank you so much to the publisher, St. Martin's Press, and NetGalley, for the early copy in exchange for an honest review. All opinions are my own.

Fascinating book that sheds light on a topic that receives so little coverage in mainstream media. If you want to catch up where your schooling left off, this is the book for you.

As most children I was fascinated by dinosaurs and that never left me. When I saw this title on NetGalley I decided to take a break from my fiction reading and spend some time with the dinosaurs. I wasn't disappointed. From the first line of the preface I was sure I had made a good choice. "Catastrophe is never convenient. The dinosaurs never expected it. Nor did any of the other organisms from the tiniest bacteria to the great flying reptiles of the air that were thriving on a perfectly normal Cretaceous day 66 million years ago." Yes, I was hooked and enjoyed every page. It wasn't all dinosaurs to meet in this well written book, it was meeting every other living creature around that day. The day the dinosaurs became extinct and the mammals set the course for us to inhabit the earth.
The story of their extinction was presented in a lively, easy going style - nothing dry from a textbook that would have you nodding off mid chapter.
My thanks to the publisher St. Martin's Press and to NetGalley for giving me an advance copy in exchange for my honest review.

I loved loved loved this book!

It was fascinating and super informative. The way it was written in a narrative style completely drew me in and made me feel the loss of this mass extinction event that much harder. The conclusion was great and the last sentence is beautiful and will definitely stick with me. Even the appendix was really fun to read since I got a better idea of how much of the science in the earlier chapters is known vs extrapolated or guessed. I had no idea of a lot of the details or just how bad the strike fallout was and was blown away by the information.

In the conclusion, the author discusses how much she misses the dinosaurs and, through reading her words, I felt that way as well. It's a bittersweet sadness knowing that we wouldn't exist if they still did while wishing we could see them in action. I'm so glad I had the chance to read this as an arc and will absolutely be buying my own copy to revisit later.

This is a good examination of the end of the dinosaurs and what happened next. It is non-technical. There is no jargon. Black provides vignettes of life at different stages before, during and after the asteroid impact that caused mass extinction of life on earth 66 million years ago. Her depictions seem more realistic than cartoonish. Life in any age is complex and dependent on it's surroundings. There is a lot of information about what it takes for an ecosystem to rebuild after disaster and it has implications to our own times. This is the guts of the book and since where we are today is because of what happened back then it's very worth learning not simply what happened, but how. I would suggest reading the Appendix where Black explains some of the choices made in her version of the story. Also a glance through the Notes shows that there was indeed plenty of serious research.

Well, I didn't think a book could make me sad about dinosaurs but here we are.

Riley Black's The Last Days of the Dinosaurs is like nothing I have ever read before. It follows the time right before and then very long after the impact of the asteroid which killed the dinosaurs. Black focuses in on various animals and how they cope with the massive changes around the globe in a way which makes you actually feel like the dinosaurs are old friends of yours. I anticipated there would be times where the science would bore me, but Black sidestepped all of that by creating an actual narrative about animals which went extinct millions of years ago.

Black's love of dinosaurs truly comes through in this book and it is all the better for it. Jurassic Park references certainly help as well. "Life, uh, finds a way."

(This book was provided as an advance copy by Netgalley and St. Martin's Press. The full review will be posted to HistoryNerdsUnited.com on 5/5/2022.)

So, this is a very long enthusiastic review, which got a bit away from me, so here’s the short version: this book is amazing, and if you love dinosaurs and prehistoric creatures, you need to read it. If you don’t, read this book, and you’ll grow to love them! It will reshape your fundamental understanding of dinosaurs, the rise of mammals, and the very nature of life and ecosystems on this planet.

Like many people, I loved dinosaurs and prehistoric animals as a kid. As an adult, I’ve continued reading books about science, including quite a few books about dinosaurs, but it’s been a while since I came across a book about prehistory that reignited the sense of joy and wonder I felt as a kid, the sense that there was so much still to discover. The Last Days of the Dinosaurs did this for me, reinvigorating my sense of wonder, and my desire to know more.

Black’s account of the end of the K-Pg extinction reads like a story, inviting the reader to the fifth mass extinction in Earth’s history, and the series of events that led to the end of the non-avian dinosaurs and the improbable rise of mammals. Black focuses particularly on the Hell’s Creek Formation and uses several species found there at different points in time as actors in her prehistoric scenes. These species range from the well-known and charismatic dinosaurs just before their extinction to lesser-known creatures such as the tiny, tree-shrew-like early primate and insectivore, Purgatorius. She also checks in on other locations around the world in vignettes to demonstrate the impact’s global reach. Each chapter is set in a different time period, beginning at just before the impact (chapter one) and finally ending at one million years after the impact (chapter eight).

As Black discusses in her Conclusion and Appendix, this book isn’t intended to be completely factual. She takes known information and extrapolates creatively to paint a compelling picture of what might have been. Her gifted writing makes the case that the boundary we tend to put between the hard sciences and the humanities is artificial and damaging. By using her imagination to extrapolate (and, yes, occasionally speculate), Black brings this prehistoric world to life in a way I haven’t seen before from any writer. Her storytelling makes complex processes and ideas much easier to grasp for the non-expert.

As adults, I think we often get the sense, especially with things in the far past, that knowledge is somehow “done” or complete, and that we don’t have anything more to learn. We get complacent and stop challenging the world and ourselves. I’m ashamed to say I had a little of this attitude before reading this book and learning, among other things, that: there used to be inch-long fleas(!), we’re still discovering dozens of new dino species a year, and the explosion of flowering plants post impact directly contributed to mammalian (and primate!) success. Really, I could write for quite a while about what I learned, but it’s probably best that you go read the book for yourselves.

Black’s book altered my understanding of how ecosystems work and how niches and species proliferate. She shows that no life or species exists in a vacuum, and that the rise of flowering plants and the eventual diversification of mammals post Chicxulub Impact wasn't inevitable. A few years ago, I had the chance to see the K-Pg boundary (as Black notes, anachronistically still called K-T boundary) near Trinidad, Colorado just as she describes in her conclusion. My new knowledge has enriched that memory, and made me want to see it again soon.

I’m very grateful for St. Martin’s Press for reaching out to me about this book, and for NetGalley for giving me the ARC in exchange for an honest review.