“No living reptile has cheeks. But no living reptile has grinding teeth anything remotely resembling those of a duckbill. If the duckbills could have evolved such unreptilian teeth, why couldn't they have evolved unreptilian teeth?”

—  Robert T. Bakker , book The Dinosaur Heresies

The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 165
The Dinosaur Heresies (1986)

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "No living reptile has cheeks. But no living reptile has grinding teeth anything remotely resembling those of a duckbill…" by Robert T. Bakker?
Robert T. Bakker photo
Robert T. Bakker 30
American paleontologist 1945

Related quotes

Robert T. Bakker photo

“Dinosaurs are not lizards, and vice versa. Lizards are scaley reptiles of an ancient bloodline. The oldest lizards antedate the earliest dinosaurs by a full thirty million years. A few large lizards, such as the man-eating Komodo dragon, have been called "relicts of the dinosaur age", but this phrase is historically incorrect. No lizard ever evolved the birdlike characteristics peculiar to each and every dinosaur. A big lizard never resembled a small dinosaur except for a few inconsequential details of the teeth. Lizards never walk with the erect, long-striding gait that distinguishes the dinosaurlike ground birds today or the birdlike dinosaurs of the Mesozoic.”

Robert T. Bakker book The Dinosaur Heresies

The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 22-23
The Dinosaur Heresies (1986)

Sir William Lawrence, 1st Baronet photo

“Physiologists have usually represented that our species holds a middle rank, in the masticatory and digestive apparatus, between the flesh-eating and the herbivorous animals; — a statement which seems rather to have been deduced from what we have learned by experience on this subject, than to result fairly from an actual comparison of man and animals. … The teeth of man have not the slightest resemblance to those of the carnivorous animals, except that their enamel is confined to the external surface. He possesses, indeed, teeth called canine, but they do not exceed the level of the others, and are obviously unsuited to the purposes which the corresponding teeth execute in carnivorous animals. … Thus we find that, whether we consider the teeth and jaws, or the immediate instruments of digestion, the human structure closely resembles that of the simiæ; all of which, in their natural state, are completely herbivorous.”

Sir William Lawrence, 1st Baronet (1783–1867) British surgeon

Lectures on Comparative Anatomy, Physiology, Zoology, and the Natural History of Man, Eighth Edition (London: John Taylor, 1840), Section I, Chapter VI, pp. 148-150. Full text online at the Internet Archive https://archive.org/stream/lecturesoncompar00lawr#page/n5/mode/2up.

Joey Comeau photo

“Her face is bent out of shape, but still recognizable. There are too many teeth in her mouth, now. It is torn open at the sides. Split along her cheeks, so the weird jagged stones of her teeth can breathe.”

Joey Comeau (1980) writer

One Bloody Thing After Another

Gregory Scott Paul photo

“Tyrannosaurus rex did not have 6-to-8-inch serrated teeth and an arc of D-cross-sectioned teeth set in a massive, powerful skull just to consume rotting carcasses! These were killing tools. In sharp contrast are the weak beaks and feet of vultures and condors- the only true living scavengers.”

Gregory Scott Paul (1954) U.S. researcher, author, paleontologist, and illustrator

Gregory S. Paul (1988) Predatory Dinosaurs of the World, Simon and Schuster, p. 33
Predatory Dinosaurs of the World

Wyndham Lewis photo

“The puritanic potentialities of science have never been forecast. If it evolves a body of organized rites, and is established as a religion, hierarchically organized, things more than anything else will be done in the name of "decency". The coarse fumes of tobacco and liquors, the consequent tainting of the breath and staining of white fingers and teeth, which is so offensive to many women, will be the first things attended to.”

Wyndham Lewis (1882–1957) writer and painter

"The Family and Feminism".
The Art of Being Ruled (1926)

Kent Hovind photo

“[…] Reptiles never stop growing, so before the Flood came, when the reptiles lived to be 900 years old, they would get to be really big. Dinosaurs were just big lizards that lived with Adam and Eve before the Flood came.”

Kent Hovind (1953) American young Earth creationist

Creation seminars (2003-2005), Dinosaurs and the Bible

Tom Baker photo

“The poor don't really like that ticket. They are desperate to get away and join the rich, and have glossy hair, bright eyes and white teeth. The rich live longer and can afford to be charming.”

Tom Baker (1934) English actor
Robert T. Bakker photo

“Duckbills were supposedly croc-style swimmers, moving by strong, easy, side-to-side flexures of their tail. Therefore, the optimal design would feature vertical tail spines. But duckbill spines all slanted strongly backward, exactly as in land-living lizards, not in swimmers.
Another problem in the duckbill's swimming equipment lies in the profile of the tail. The deepest part of the croc's tail is close to the end, because the end swings through a wider arc than does the base in moving side to side. Thus the tail is deepest where it can do the most good in pushing against the water. All powerful tail-scullers have such deep tail ends. But duckbill tails were deepest at the hips and become progressively narrower from top-to-bottom toward the tip - another caudal feature nearly totally maladapted for its primary function.”

Robert T. Bakker book The Dinosaur Heresies

The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 153
The Dinosaur Heresies (1986)

Lois McMaster Bujold photo

“I would be considerably more impressed with your god, dy Cabon," said Ista through her teeth, "if He could have arranged one life's worth of simple protection in advance, rather than three hundred lives' worth of gaudy vengeance afterward.”

Lois McMaster Bujold book Paladin of Souls

Source: Paladin of Souls (2003), p. 271

Related topics