Endless Forms Most Beautiful: The New Science of Evo Devo and the Making of the Animal Kingdom

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9781501284557: Endless Forms Most Beautiful: The New Science of Evo Devo and the Making of the Animal Kingdom

For over a century, opening the black box of embryonic development was the holy grail of biology. Evo Devo -- Evolutionary Developmental Biology -- is the new science that has finally cracked open the box. Within the pages of his rich and riveting book, Sean B. Carroll explains how we are discovering that complex life is ironically much simpler than anyone ever expected. Perhaps the most surprising finding of Evo Devo is the discovery that a small number of primitive genes led to the formation of fundamental organs and appendages "in all animal forms." The gene that causes humans to form arms and legs is the same gene that causes birds and insects to form wings, and fish to form fins; similarly, one ancient gene has led to the creation of eyes across the animal kingdom. Changes in the way this ancient tool kit of genes is used have created all the diversity that surrounds us. Sean Carroll is the ideal author to lead the curious on this intellectual adventure -- he is the acknowledged leader of the field, and his seminal discoveries have been featured in Time and The New York Times.

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Review:

"Every animal form is the product of two processes--development from an egg and evolution from its ancestors," writes Sean B. Carroll in his introduction to Endless Forms Most Beautiful. The new science of "evo devo"--or evolutionary developmental biology--examines the relationships between those two processes, embryonic development and evolutionary changes, despite their radically different time scales. Carroll first offers a recap of how genes express themselves in a growing embryo, then peers into the life histories of real-life examples to explain how those genes have changed (or not changed) over millions of years of evolution. Paraphrasing Thomas Huxley, he asks us to consider evolution and development as two sides of the same coin.

We may marvel at the process of an egg becoming an adult, but we accept it as an everyday fact. It is merely then a lack of imagination to fail to grasp how changes in this process that assimilated over long periods of time, far longer than the span of human experience, shape life's diversity."
The book's second half is where Carroll really gets at the meat of evo devo, explaining how regulatory genes control such mysteries as individual and population changes in butterfly's spots, jaguar fur, and hominid skulls. Evo devo is one of the hottest areas of study in 21st-century biology, and Carroll's outline of the field is a great place to start understanding it. --Therese Littleton

About the Author:

Sean B. Carroll is an Investigator at the Howard Hughes Medical Institute and Professor of Genetics at the University of Wisconsin-Madison. His scientific discoveries have been featured in "Time, U.S. News & World Report" and "The New York Times", and Carroll himself has written articles for "Natural History" and "Playboy". His first book, "Endless Forms Most Beautiful: The New Science of Evo Devo", was a 2005 Top Popular Science Book of the Year ("USA Today"). He and his wife and children reside in Madison, Wisconsin.

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