The Beak of the Finch

by

Jonathan Weiner

Charles Darwin was an English naturalist who lived from 1809-1882. He was a geologist and biologist who is renowned in the modern world for his contributions to the science of evolution. He pioneered the theory that the branching pattern of the evolution of species resulted from the process of natural selection, during which adaptive or useful traits are “selected for” and passed down, while traits that become a liability to any given species are “selected against,” and not passed down. Darwin’s idea that in the struggle for existence, only the fittest survive—and that their survival drives the evolution of subsequent generations—was considered controversial and even heretical, as many prominent thinkers of his era subscribed to Creationism. Darwin himself wrestled with questions of faith throughout his life as he studied variations, adaptations, and events of sexual selection in plants, animals, and even humans. By the 1970s, due to the landmark 1859 publication of Darwin’s On the Origin of Species, evolution became an accepted theory amongst the majority of the scientific community. Throughout The Beak of the Finch, author Jonathan Weiner contrasts what Darwin was able to see and understand within his lifetime against the pioneering research that has been conducted throughout the 20th century—specifically Peter and Rosemary Grant’s research. The Grants took Darwin’s theory that evolution could be observed on a long enough scale one step further. Through their study of the finches that Darwin himself observed during his journey to the Galápagos in the early 1830s, the Grants proved that natural selection and the changes it created could be observed within the span of years or even months. Darwin’s work has left a profound legacy on the modern world, having forever changed the field of evolutionary biology and our more general human understanding of how species evolve.

Charles Darwin Quotes in The Beak of the Finch

The The Beak of the Finch quotes below are all either spoken by Charles Darwin or refer to Charles Darwin. For each quote, you can also see the other characters and themes related to it (each theme is indicated by its own dot and icon, like this one:
Natural Selection and Evolution as Ongoing Processes  Theme Icon
).
Chapter 1 Quotes

[T]hese new studies suggest that Darwin did not know the strength of his own theory. He vastly underestimated the power of natural selection. Its action is neither rare nor slow. It leads to evolution daily and hourly, all around us, and we can watch.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Page Number: 9
Explanation and Analysis:
Chapter 2 Quotes

The whole family tree of Darwin’s finches is marked by this kind of eccentric specialization, and each species has a beak to go with it. Robert Bowman, an evolutionist who studied the finches before the Grants, once drew a chart comparing the birds' beaks to different kinds of pliers. Cactus finches carry a heavy-duty lineman’s pliers. Other species carry analogues of the high-leverage diagonal pliers, the long chain-nose pliers, the parrot-head gripping pliers, the curved needle-nose pliers, and the straight needle-nose pliers.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Related Symbols: The Beak of the Finch
Page Number: 18
Explanation and Analysis:

Only varieties. If so, they would fit comfortably within the orthodox view of life. But what if they were something more than varieties? […] What if there were no limits to their divergence? What if they had diverged first into varieties, and then gone right on diverging into species. new species, each marooned on its own island?

“—If there is the slightest foundation for these remarks,” Darwin wrote, “the zoology of Archipelagoes—will be well worth examining; for such facts undermine the stability of Species.” Then, in a scribble that foreshadowed two decades of agonized caution, Darwin inserted a word: “would undermine the stability of Species.”

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Related Symbols: The Beak of the Finch
Page Number: 27
Explanation and Analysis:
Chapter 4 Quotes

According to [Darwin’s] theory, even the slightest idiosyncrasies in the shape of an individual beak can sometimes make a difference in what that particular bird can eat. In this way the variation will matter to the bird its whole life—most of which, when it is not asleep, it spends eating. The shape of its particular beak will either help it live a little longer or cut its life a little shorter, so that, in Darwin's words, "the smallest grain in the balance, in the long run, must tell on which death shall fall, and which shall survive."

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Related Symbols: The Beak of the Finch
Page Number: 51
Explanation and Analysis:
Chapter 7 Quotes

The fossil record is just too primitive a motion-picture camera to capture the fast-moving life. Rapid motion disappears like the whir of a hummingbird's wings. In such a record, the two wonder years of Darwin’s finches would disappear as surely as a wing-beat up and a wing-beat down, canceling out in the blur.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Page Number: 111
Explanation and Analysis:
Chapter 8 Quotes

Half a millimeter can decide who lives and who dies. Since these slight variations are passed down from one generation to the next, the brood of a small beak and a medium beak would be likely to have intermediate beaks, equipment that would sometimes differ from their parents' not by one or two tenths of a millimeter but by whole millimeters, maybe by many millimeters. […] Daphne Major is not a forgiving place. A line of misfits should not last.

[…]

That is why the Grants are so puzzled now.

Related Characters: Jonathan Weiner (speaker), Charles Darwin, Peter and Rosemary Grant
Related Symbols: The Beak of the Finch
Page Number: 123
Explanation and Analysis:
Chapter 11 Quotes

The conclusion is inescapable: the feature that makes the finches most interesting to us is also the feature that makes them most interesting to each other. When they are courting, head to head, making decisions that are fateful for the evolution of their lines, Darwin’s finches are studying the same thing as the finch watchers. They are looking at each other's beaks.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Related Symbols: The Beak of the Finch
Page Number: 168
Explanation and Analysis:
Chapter 16 Quotes

A “web of complex relations” binds all of the living things in any region, Darwin writes. Adding or subtracting even a single species causes waves of change that race through the web,” onwards in ever-increasing circles of complexity.” The simple act of adding cats to an English village would reduce the number of field mice. Killing mice would benefit the bumblebees, whose nests and honeycombs the mice often devour. Increasing the number of bumblebees would benefit the heartsease and red clover, which are fertilized almost exclusively by bumblebees. So adding cats to the village could end by adding flowers.

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Page Number: 225
Explanation and Analysis:
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Charles Darwin Quotes in The Beak of the Finch

The The Beak of the Finch quotes below are all either spoken by Charles Darwin or refer to Charles Darwin. For each quote, you can also see the other characters and themes related to it (each theme is indicated by its own dot and icon, like this one:
Natural Selection and Evolution as Ongoing Processes  Theme Icon
).
Chapter 1 Quotes

[T]hese new studies suggest that Darwin did not know the strength of his own theory. He vastly underestimated the power of natural selection. Its action is neither rare nor slow. It leads to evolution daily and hourly, all around us, and we can watch.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Page Number: 9
Explanation and Analysis:
Chapter 2 Quotes

The whole family tree of Darwin’s finches is marked by this kind of eccentric specialization, and each species has a beak to go with it. Robert Bowman, an evolutionist who studied the finches before the Grants, once drew a chart comparing the birds' beaks to different kinds of pliers. Cactus finches carry a heavy-duty lineman’s pliers. Other species carry analogues of the high-leverage diagonal pliers, the long chain-nose pliers, the parrot-head gripping pliers, the curved needle-nose pliers, and the straight needle-nose pliers.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Related Symbols: The Beak of the Finch
Page Number: 18
Explanation and Analysis:

Only varieties. If so, they would fit comfortably within the orthodox view of life. But what if they were something more than varieties? […] What if there were no limits to their divergence? What if they had diverged first into varieties, and then gone right on diverging into species. new species, each marooned on its own island?

“—If there is the slightest foundation for these remarks,” Darwin wrote, “the zoology of Archipelagoes—will be well worth examining; for such facts undermine the stability of Species.” Then, in a scribble that foreshadowed two decades of agonized caution, Darwin inserted a word: “would undermine the stability of Species.”

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Related Symbols: The Beak of the Finch
Page Number: 27
Explanation and Analysis:
Chapter 4 Quotes

According to [Darwin’s] theory, even the slightest idiosyncrasies in the shape of an individual beak can sometimes make a difference in what that particular bird can eat. In this way the variation will matter to the bird its whole life—most of which, when it is not asleep, it spends eating. The shape of its particular beak will either help it live a little longer or cut its life a little shorter, so that, in Darwin's words, "the smallest grain in the balance, in the long run, must tell on which death shall fall, and which shall survive."

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Related Symbols: The Beak of the Finch
Page Number: 51
Explanation and Analysis:
Chapter 7 Quotes

The fossil record is just too primitive a motion-picture camera to capture the fast-moving life. Rapid motion disappears like the whir of a hummingbird's wings. In such a record, the two wonder years of Darwin’s finches would disappear as surely as a wing-beat up and a wing-beat down, canceling out in the blur.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Page Number: 111
Explanation and Analysis:
Chapter 8 Quotes

Half a millimeter can decide who lives and who dies. Since these slight variations are passed down from one generation to the next, the brood of a small beak and a medium beak would be likely to have intermediate beaks, equipment that would sometimes differ from their parents' not by one or two tenths of a millimeter but by whole millimeters, maybe by many millimeters. […] Daphne Major is not a forgiving place. A line of misfits should not last.

[…]

That is why the Grants are so puzzled now.

Related Characters: Jonathan Weiner (speaker), Charles Darwin, Peter and Rosemary Grant
Related Symbols: The Beak of the Finch
Page Number: 123
Explanation and Analysis:
Chapter 11 Quotes

The conclusion is inescapable: the feature that makes the finches most interesting to us is also the feature that makes them most interesting to each other. When they are courting, head to head, making decisions that are fateful for the evolution of their lines, Darwin’s finches are studying the same thing as the finch watchers. They are looking at each other's beaks.

Related Characters: Jonathan Weiner (speaker), Charles Darwin
Related Symbols: The Beak of the Finch
Page Number: 168
Explanation and Analysis:
Chapter 16 Quotes

A “web of complex relations” binds all of the living things in any region, Darwin writes. Adding or subtracting even a single species causes waves of change that race through the web,” onwards in ever-increasing circles of complexity.” The simple act of adding cats to an English village would reduce the number of field mice. Killing mice would benefit the bumblebees, whose nests and honeycombs the mice often devour. Increasing the number of bumblebees would benefit the heartsease and red clover, which are fertilized almost exclusively by bumblebees. So adding cats to the village could end by adding flowers.

Related Characters: Jonathan Weiner (speaker), Charles Darwin (speaker)
Page Number: 225
Explanation and Analysis: