Bakker assumed everything before it was discovered, and now he's right.......

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	• The Dinosaur Heresies: New Theories Unlocking the Mystery of the Dinosaurs and Their Extinction Robert T. Bakker William Morrow & Company, 1986 - 481 pages average customer review:based on 40 reviews
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highly recommended

Non Fiction

Outstanding look at new palaeontology and dinosaur work. Taking the various papers that Bakker wrote for scientific journals and converting them to a book that is slightly more understandable to the public. The basic premise is that dinosaurs were not cold-blooded lizards, but warmer blooded and quite fast at times. See Jurassic Park for an example of the theories in action. Really great work.

Great book from a major player.

In the second half of the twentieth century the current thinking about dinosaurs completely changed, so that they are now accepted as warm blooded, vigorous alternatives to the mammals, and in fact the ancestors of birds (though not all that bright, whereas birds can be). Bakker was a major player in this change of views, and offers some fascinating anecdotes on how various experiences led to insights which permitted proper interpretation of the fossil evidence. The reader comes away not only with an understanding of the dinosaurs, but with many insights into evolution in general, and all the types of reasoning and analysis necessary to glean the truth from fossil evidence. Bakker has a lively style, giving detail without getting bogged down (well, I occasionally skimmed a bit, but that is because I have little interest in anatomy). There are many illustrations, but I was not always happy with them. Some illustrations serve as hand drawn alternatives to Power Point slides, and are very good. However, the drawings to illustrate anatomy were often not simplified enough for me to better understand the point. I do wish Bakker had speculated why, in the world of the dinosaurs, it was the mammals who apparently occupied all the really small ecological niches, comparable to current day mice and squirrels. Also, his final chapter on the demise of the dinosaurs was stimulating, but not as well thought out as the rest of the book. He points to the development of land bridges (as water levels dropped) which permitted worldwide migration of larger animals, and the consequent extinction of many species which could not compete, and also the spread of pathogens and parasites. Interesting, but competition would not eliminate all species, and no arguments are presented as to why small animals, e.g. mammals, would be more likely to survive than large animals (great numbers?). While this book was published in 1986, I read it based on Richard Dawkin's recent recommendation, and I do not believe it is outdated.

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Astonishing dinosaurs

Incredibly compelling book about the possible evolution of velociraptors into birds.

Dinosaur Heresies goes beyond mere dinosaur evolution, however. As an enthusiastic gardener, I was bemused and delighted to learn of the powerful link between Cretaceous herbivorous dinosaurs and the rise of flowering plants, how it was BECAUSE of these saurian herbivores that we have flowering plants instead of a world of gymnosperms (aka pines, cycads, ginko, etc.).

It was a FUN read!

Bakker assumed everything before it was discovered, and now he's right.......

This book talks about new theories(at the time) of dinosaurs and their extinction, ranging from warm-bloodedness all the way to dinosaurs evolving into birds. There are five parts to this story.

Part I:The Conquering Cold-Bloods: A Conondum
Basically this part describes reptiles and their advantages/disadvantages when it comes to either cold blooded or warm blooded animals. It even compares mammals to reptiles. It talks about how cold blooded and warm blooded reptiles/mammals how active and how their eating habits are different. Also talks about dinosaurs if they were warm or cold blooded. Here is a short excerpt from this part. "Ornitholestes was an impressive little dinosaur, and even the diehard defenders of orthodoxy yield a little to admit that perhaps Ornitholestes and its kin might have had high metabolism. Such a concession, however, would lead to yet another incosistency in the theory of mass homeothermy. Big dinosaurs, all of them, evolved from small-dinosaur ancestors. The idea that little ancestors had high metabolism and their bigger descendants didn't, would be tantamount to arguing that evolution reversed itself"(Bakker 98).

Part II:The Habitat of the Dinosaurs
This section discusses dinosaurs with their habitat and how their diet/body features adapt to their environment. It discusses dinosaurs who helped use gastroliths for digestion. Also talks about the evolution of plants in relation to dinosaurs. Here is a short excerpt from this part. "Brontosaur teeth, moreover, confirm the heretical idea that they ate a tough vegetable diet. If the brontosaurs dined only on soft water plants, then very little wear would appear on their teeth. But infact the teeth of Camarasaurus, Brachiosaurus and their kin manifest very severe wear, which could only have been produced by tough or gritty food"(Bakker 136).

Part III:Defense, Locomotion, and the Case For Warm-Blooded Dinosaurs
The third section discusses the locomotion of dinosaurs in comparison to lizards,crocodiles,etc. Discusses dinosaur defense, like Triceratops' horns and the "boneheads" of the Pachycephalosaurs. Also talks about Pterosaurs. Discusses Archeaopteryx and it's feathers helping to support warm-bloodedness.
Here is a short excerpt from this part. "Anchisaurs' tails were stoutly muscled and they could easily have reared up, foreclaws at the ready, to face their enemies. Anchisaur hind claws, especially the one located on the large inner toe, could lash out with even more powerful blows than the foreclaws"(Bakker 256).

Part IV:The Warm-Blooded Metronome of Evolution
Talks about dinosaur sex, with threat displays of intimidation. Discusses growth in dinosaurs who were probably warm blooded. Talks about dinosaur lungs, heart, and large brains. Here is a short excerpt from this part.
"How can the dinosaurs' growth be measured? An accurate estimate can be derived from the texture of the fossil bone. A thin slice can be cut from a fossil-bone chip and glued to a glass plate"(Bakker 350).

Part V:Dynastic Frailty and the Pulses of Animal History
This final section discusses the Kazanian Revolution. During the Kazanian Revolution, warm blooded animals exploded in population. Discusses the dinosaur extinction and the animals who died along with them. Talks about the evolution of the Dinosauria and that they should be in their own class. Here is a short excerpt from this part. "A truly scientific skeptic would start assuming neither cold-bloodedness nor warm-bloodedness, and then reevaluate the evidence without prior terminological bias. So long as the DInosauria remain stuck in the class Reptilia, this type of analysis is impossible. Let dinosaurs be dinosaurs. Let the Dinosauria stand proudly alone, a Class by itself. They merit it"(Bakker 462).

Overall, this book is excellent. Bakker did all his own illustrations(which are very artistic) and even assumed dinosaurs were feathered even before they were discovered. Even though some of his theories may be outdated now, I still recommend this book to anyone. I read it back in seventh grade and it took me a while, but reading this book is surely worth the time!

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Dinosaurs the greatest evolutionary success story

Bob Bakker book describes so brilliantly why Dinosaurs were so successful and ruled the Earth for 150 million years. The Dinosaurs were so successful that mammals throughout this time never grew larger than 1 meter long and many were rat sized. If it wasn't for a giant asteroid that hit 65 million years ago, they would be still around and we would not.

Bakker in this book describes how the Dinosaur's warm blooded metabolism was integral to their success and how cold blooded animals like reptiles back then as now were limited. He also goes to show us how Dinosaurs were fast growing, dynamic animals that were constantly changing, how bird evolved from dinosauts and how dinosaurs were key the spread of flowering plants.

A book you must read before you die.

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reviews: page 1, 2, 3, 4, 5, 6, 7, 8

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