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Shapes of Time: The Evolution of Growth and Development
Kenneth J. McNamara Manufacturer: The Johns Hopkins University Press ProductGroup: Book Binding: Hardcover Similar Items:
ASIN: 0801855713 |
Book Description
Have you ever wondered how evolution produced the wing of a bat, the foot of the first amphibian, the tiny arms of the Tyrannosaurus, or the eye and brain that allow you to read these words? Conventional wisdom would say natural selection. But can this alone explain the subtle nuances and wonders of evolution?
Shapes of Time explores evolution down another, much neglected avenue that links natural selection and genetics -- the effect of changes to the rates and timing of growth and development. Kenneth J. McNamara delves into the living and fossil worlds to show how animals and plants have evolved when the carefully orchestrated pattern of embryological development is gently nudged off-course -- producing species that may have developed "beyond" their ancestors, or others that have developed less, looking more like overgrown juveniles.
McNamara shows how this phenomenon -- known as heterochrony -- has affected many aspects of evolution, including the mechanism behind the selection of different breeds of animals, differences between sexes, and animal behavior. Heterochrony accounts for the "Peter Pan syndrome," in which some species look like their ancestors' children. It explains what was really behind the evolution of flightless birds, how the dinosaurs got so big, how pterosaurs managed to produce a wing supported only by their fourth fingers, and what has driven the evolution of the animal closest to our hearts -- the largest primate species with the biggest brain and longest childhood -- Homo sapiens.
Customer Reviews:
A great book on an often neglected topic..........2000-09-15
McNamara's main thesis is that three major developmental trends -- 1) Peramorphosis; 2) Paedomorphosis; and 3) Hypermorphosis (a twist on Peramorphosis) -- produce a good deal of the observable variability out there. He proceeds to make the case that changes in rates of development and growth (i.e., heterochrony) can have a major impact as an evolutionary process, and that heterochrony deserves a more prominent place in evolutionary theory.
Just so you know what he's talking about...1) peramorphosis is a condition where growth or development proceeds beyond that observed in the ancestral condition; 2) paedomorphosis is a condition where development does not reach the state observed in the ancestral condition; and 3) hypermorphosis (a form of peramorphosis) is a condition where not only does growth and development surpass the ancestral condition, but growth and development proceeds longer than in the ancestral condition.
McNamara does an excellent job of tying together his thesis in the last chapter by applying virtually everything he talked about throughout the book. In that chapter he addresses human evolution, and does a great job of showing how, in terms of heterochrony, we are a "cocktail organism," showing signs of paedomorphosis here, perimorphosis there, and hypermorphosis in another situation.
Readers entrenched in the traditional view of the "new synthesis," i.e., genetics + natural selection = evolution, will find themselves shaking their heads here and there as they read this book (I even did that a couple of times and I'm a relatively strong proponent of development being a significant factor in evolution). If you press on you will find that McNamara makes a sensible, supported case for the importance of heterochrony as being an important factor in evolutionary theory.
The question I have is this: "What is the source of heterochrony in development?" McNamara doesn't address this directly, but his downplaying the role of genetics suggests that genetic variability codes primarily for what happens, not when or how fast it happens. This is a quandry! What controls and passes on information about the timing of development and growth if not genetics? In any case heterochrony exists in growth and development. That is not debatable.
I support McNamara's position that growth and development play a major role in evolution. I wonder what it will take to get those factors included in mainstream discussions on evolutionary theory?
Good job to Kenneth McNamara! He provides good food for thought in this offering.
5 stars.
Alan Holyoak, Dept of Biology, Manchester College, IN
Evolution revised and extended.......1999-01-21
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SHAPES OF TIME: THE EVOLUTION OF GROWTH AND DEVELOPMENT
Ken McNamara Manufacturer: Johns Hopkins University Press ProductGroup: Book Binding: Hardcover ASIN: B000OABFQE |
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Shapes of Time: The Evolution of Growth and Development
Ken; McNamara, Kenneth J. McNamara Manufacturer: Johns Hopkins Univ Pr ProductGroup: Book Binding: Hardcover ASIN: B000PSBWG8 |
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Educating for OSHA Savvy Chemists (Acs Symposium Series)
Manufacturer: An American Chemical Society Publication ProductGroup: Book Binding: Hardcover ASIN: 0841235694 |
Book Description
This book discusses how the basic principles of chemical safety can be incorporated in chemical education curricula. It includes numerous examples and techniques, and it describes chemical laboratory compliance programs written in accordance with OSHA's laboratory standards. The book emphasizes the teaching of complex toxicological, regulatory, industrial hygiene, and chemical hazard information.
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Boundary Value Problems for Elliptic Systems
J. T. Wloka , B. Rowley , and B. Lawruk Manufacturer: Cambridge University Press ProductGroup: Book Binding: Hardcover ASIN: 0521430119 |
Book Description
The theory of boundary value problems for elliptic systems of partial differential equations has many applications in mathematics and the physical sciences. The aim of this book is to "algebraize" the index theory by means of pseudo-differential operators and new methods in the spectral theory of matrix polynomials. This latter theory provides important tools that will enable the student to work efficiently with the principal symbols of the elliptic and boundary operators on the boundary. Because many new methods and results are introduced and used throughout the book, all the theorems are proved in detail, and the methods are well illustrated through numerous examples and exercises. This book is ideal for use in graduate level courses on partial differential equations, elliptic systems, pseudo-differential operators, and matrix analysis.
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Variational Methods for Boundary Value Problems: for Systems of Elliptic Equations (Phoenix Edition)
M. A. Lavrent'ev Manufacturer: Dover Publications ProductGroup: Book Binding: Hardcover ASIN: 0486450783 |
Book Description
Customer Reviews:
Edu-fun-a-cational!.......2003-07-17
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Perturbation Methods and Semilinear Elliptic Problems on R^n (Progress in Mathematics)
Antonio Ambrosetti , and Andrea Malchiodi Manufacturer: Birkhäuser Basel ProductGroup: Book Binding: Hardcover Similar Items: ASIN: 3764373210 |
Book Description
The aim of this monograph is to discuss several elliptic problems on R n with two main features: they are variational and perturbative in nature, and standard tools of nonlinear analysis based on compactness arguments cannot be used in general. For these problems, a more specific approach that takes advantage of such a perturbative setting seems to be the most appropriate. The first part of the book is devoted to these abstract tools, which provide a unified frame for several applications, often considered different in nature.
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Boundary Value Problems for Elliptic Equations and Systems (Pitman Monographs & Surveys in Pure & Applied Mathematics)
Guo Chun Wen , and Henrich G. W. Begehr Manufacturer: Longman Scientific and Technical ProductGroup: Book Binding: Hardcover ASIN: 0470213043 |
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Boundary value problems governed by second order elliptic systems (Monographs and studies in mathematics)
David L Clements Manufacturer: Pitman Advanced Pub. Program ProductGroup: Book Binding: Paperback ASIN: 0273085026 |
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Boundary-Value Problems With Free Boundaries for Elliptic Systems of Equations (Translations of Mathematical Monographs)
Valentin Nikolaevich Monakhov Manufacturer: Amer Mathematical Society ProductGroup: Book Binding: Hardcover ASIN: 0821845101 |
Book Description
This book is concerned with certain classes of nonlinear problems for elliptic systems of partial differential equations: boundary-value problems with free boundaries. The first part has to do with the general theory of boundary-value problems for analytic functions and its applications to hydrodynamics. The second presents the theory of quasiconformal mappings, along with the theory of boundary-value problems for elliptic systems of equations and applications of it to problems in the mechanics of continuous media with free boundaries: problems in subsonic gas dynamics, filtration theory, and problems in elastico-plasticity.
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Linear elliptic differential systems and eigenvalue problems (Lecture notes in mathematics)
Gaetano Fichera Manufacturer: Springer Verlag ProductGroup: Book Binding: Unknown Binding ASIN: B0007ITLUK |
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Numerical Approximation Methods for Elliptic Boundary Value Problems: Finite and Boundary Elements (Texts in Applied Mathematics)
Olaf Steinbach Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0387313125 |
Book Description
The book contains chapter summaries and excercises at the end of each chapter.
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Solving Elliptic Problems Using Ellpack (Springer Series in Computational Mathematics)
J. Rice Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0387909109 |
Book Description
This book is a complete guide to the ELLPACK software system for solving elliptic partial differential equations. ELLPACK consists of a very high level user interface to over 50 problem solving modules. These modules are state of the art software for two and three dimensional problems and include finite difference, finite element, SFT, multigrid and many other capabilities.
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Boundary-Value Problems with Free Boundaries for Elliptic Systems of E
ProductGroup: Book Binding: Hardcover ASIN: B000IBGIPW |
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Young Goodman Brown and Other Tales (Oxford World's Classics)
Nathaniel Hawthorne Manufacturer: Oxford University Press, USA ProductGroup: Book Binding: Paperback Similar Items:
ASIN: 0192836005 |
Book Description
The first paperback edition to include full annotations of these twenty Hawthorne tales written between the 1830s and 50s, this volume contains the classic pieces "Young Goodman Brown," "The Maypole of Merry Mount," "The Birthmark," "The Celestial Railroad," and "Earth's Holocaust," as well asCustomer Reviews:
Worth the effort.......2007-06-27
The Devil Made Me Do It.......2006-07-09
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Young Goodman Brown and Other Short Stories (Dover Thrift Editions)
Nathaniel Hawthorne Manufacturer: Dover Publications ProductGroup: Book Binding: Paperback Similar Items:
ASIN: 0486270602 |
Book Description
Customer Reviews:
Virtue vs. vice and fabulous storytelling.......2007-05-23
Witchcraft, Revenge, Guilt, Artistic Obsession, and Humor - Distinctly Hawthorne.......2007-05-09
The Artist's consciousness...the soul's examination..........2002-05-26
materialism by his strong and eager apiration towards
the infinite. In his grasp the veriest clod of earth
assumed a soul. * * * The volume rich with achievements
that had won renown for its author, was yet as melancholy
a record as ever mortal hand had penned. It was the sad
confession and continual exemplification of the
shortcomings of the composite man, the spirit burdened
with clay and working in matter, and of the despair
that assails the higher nature at finding itself so
miserably thwarted by the earthly part. Perhaps every
man of genius, in whatever sphere, might recognize the
image of his own experience in Aylmer's journal."
The greatness of that insight is that it not only
applies to Aylmer, but it also obviously is something
which Hawthorne as an artist of the imagination
had grappled with himself -- while still having to live
in the practical world of matter, being assaulted by
its harassments, sicknesses, weakenings, dangers,
limits...and being forced to scratch out something by the
way of making a living for himself and his dependents.
Yet he feels somehow compromised and humiliated by the
ironic joke of having the transcendent consciousness
and soul imprisoned in the body's corruptible matter.
Here is Hawthorne the Artist expressing it so well
in "The Artist of the Beautiful": "He knew that the
world, and Annie as the representative of the world,
whatever praise might be bestowed, could never say the
fitting word nor feel the fitting sentiment which should
be the perfect recompense of an artist who, symbolizing
a lofty moral by a material trifle, -- converting what
was earthly to spiritual gold, -- had won the beautiful
into his handiwork. Not at this latest moment was he
to learn that the reward of all high performance must be
sought within itself, or sought in vain."
The insight and artistic sensitivity and psychological
understanding more than outshine the stand-offish
stage manager and manipulator of effects.
A potent sampling of Hawthorne's tales.......2001-08-19
These are stories of weird science, romantic and professional obsession, thwarted love, witchcraft, guilt, and the quest for beauty. Irony and tragedy mark many of the tales. Hawthorne takes us from the rugged American frontier to a sunlit Italian garden. The title story is a strangely compelling evocation of the Salem Puritans and their obsession with Satanic conspiracies. Also impressive is "Roger Malvin's Burial," a devastating psychological tale.
If the only Hawthorne you know is the author of the justly-celebrated "Scarlet Letter," check out this collection. Overall, this book is a good choice both for classroom use and individual reading.
Young Goodman Brown.......1999-12-15
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Young Goodman Brown And Other Short Stories
Nathaniel Hawthorne Manufacturer: NY ProductGroup: Book Binding: Paperback ASIN: B000MU9GAS |
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