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Academic & Professional Books  History & Other Humanities  History of Science & Nature

Life Out of Balance Homeostasis and Adaptation in a Darwinian World

Series: NEXUS
By: Joel B Hagen(Author), Alexandra Evonne Hui(Foreword By)
360 pages, 13 b/w illustrations
Life Out of Balance
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  • Life Out of Balance ISBN: 9780817320898 Hardback Apr 2021 Not in stock: Usually dispatched within 1-2 weeks
Price: £48.50
About this book Customer reviews Biography Related titles

About this book

If natural selection constitutes the first law of biology, supporters claim that homeostasis is a second law, equally important and closely related to the first. Such claims notwithstanding, homeostasis has generated a series of controversies since it was formalized by Walter Cannon in the late 1920s. Critics contended that Cannon took a too optimistic view of life, ignoring not only pathological deviations from normality, but also failing to adequately explain the ability of living things to respond adaptively to environmental challenges.

Underlying these controversies was the unresolved problem of integrating physiology and other areas of functional biology with the emerging evolutionary synthesis of Mendelian genetics and Darwinian natural selection. The physiological idea of homeostasis as the adaptive “fit” between the organism and its environment and the Darwinian idea of adaptation and fitness in terms of reproductive success might seem to be complementary in an unproblematic way, but historically they have had an uneasy relationship.

Life Out of Balance focuses on a period in history when new ideas of self-regulation, adaptation, and fitness became central to a variety of biological disciplines. During the decades surrounding World War II, these ideas developed in several quite different contexts and led to greater debates about the merits of such models as applied to larger systems, including society at large. Particularly in its later cybernetic form homeostasis seemed to provide new ways of discussing balance and regulation that avoided discredited approaches of earlier champions of vitalism and mechanism. It provided a common perspective and terminology for discussing self-regulating “systems” whether mechanical, biological, or social. Although enormously fruitful and influential, homeostatic perspectives also generated numerous controversies when critics questioned the degree to which biological systems are characterized by balance and self-regulation. Resolving these controversies continues to be a challenge in modern biology.

Customer Reviews


Joel B. Hagen is professor of biology at Radford University. He is author of An Entangled Bank: The Origins of Ecosystem Ecology and co-author, with Douglas Allchin and Fred Singer, of Doing Biology.

Series: NEXUS
By: Joel B Hagen(Author), Alexandra Evonne Hui(Foreword By)
360 pages, 13 b/w illustrations
Media reviews

"Across deserts and tundra, from kangaroo rats to human societies, Hagen masterfully charts the history of a key concept in twentieth-century biological thought: homeostasis. Life Out of Balance uncovers the intertwined fates of ideas about self-regulation in clinical medicine, genetics, cybernetics, evolutionary theory, and more."
– Erika Lorraine Milam, author of Creatures of Cain: The Hunt for Human Nature in Cold War America

"The idea of balance and directionality in ecological systems has a rich history, but usually not as well connected to the work of systematists and physiologists. The standard narrative for the mid-century period has been the rejection of physiological metaphors and superorganisms in favor of a Gleasonian ‘individualistic concept’, nicely tied to an origin story for evolutionary ecology as a discipline. Hagen brings a welcome corrective to that history by revealing the widespread and persistent appeal and use of the idea of homeostasis, across multiple fields."
– William C. Kimler, associate professor of history at North Carolina State University

"As a work of intellectual history or the history of scientific ideas, Life Out of Balance also draws on the archival record and on correspondence, bringing new and unfamiliar insights to a subject that should have been far more central in the history of the biological sciences."
– Vassiliki Betty Smocovitis, author of Unifying Biology: The Evolutionary Synthesis and Evolutionary Biology

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