This collection of linked stories by internationally renowned evolutionist Lynn Margulis reveals science from the inside--its thrills, disappointments, and triumphs. A largely fictional account, it draws on her decades of experience to portray the poor judgment, exhaustion, and life-threatening dedication of real scientists--their emotional preoccupations, sexual distractions, and passions for research. The esoteric, demanding, sometimes exhilarating world of science emerges from the shadows of its passive narrative into the sunlight of the personal voice of those who attempt to wrench secrets directly from nature. All of us who struggle to balance family, professional, and social commitments with intellectual quest will be intrigued by the humanity of these tales.

Naturalists in antiquity worked hard to dispel fanciful ideas about the meaning of living lights, but remained bewildered by them. Even Charles Darwin was perplexed by the chaotic diversity of luminous organisms, which he found difficult to reconcile with his evolutionary theory. It fell to naturalists and scientists to make sense of the dazzling displays of fireflies and other organisms. In Luminous Creatures Michel Anctil shows how mythical perceptions of bioluminescence gradually gave way to a scientific understanding of its mechanisms, functions, and evolution, and to the recognition of its usefulness for biomedical and other applied fields. Following the rise of the modern scientific method and the circumnavigations and oceanographic expeditions of the eighteenth and nineteenth centuries, biologists began to realize the diversity of bioluminescence's expressions in light organs and ecological imprints, and how widespread it is on the planet. By the end of the nineteenth century an understanding of the chemical nature and physiological control of the phenomenon was at hand. Technological developments led to an explosion of knowledge on the ecology, evolution, and molecular biology of bioluminescence. Luminous Creatures tracks these historical events and illuminates the lives and the trail-blazing accomplishments of the scientists involved. It offers a unique window into the awe-inspiring, phantasmagorical world of light-producing organisms, viewed from the perspectives of casual observers and scientists alike.

The Physiology of Fishes, Volume II: Behavior focuses on the physiology of fishes, as well as nervous and visual systems, sense organs, fish behavior, and pigment of fishes. The book first offers information on the nervous system, including the telencephalon, mesencephalon, metencephalon, medulla oblongata and spinal cord, autonomic nervous system, and functional development of the nervous system. The manuscript then elaborates on the sense organs, acoustico-lateralis system, and olfactory and gustatory senses of fishes. Discussions focus on component parts of the visual system, photoreceptive functions, lateral line, and the labyrinth. The manuscript takes a look at the ethological analysis of fish behavior and reproductive and parental behavior. Topics include coordinating and releasing mechanisms, ecological relationships, endocrine mechanisms, and motor processes. The text also touches on electric organs, luminous organs of fishes, and pigment of fishes. The publication is a valuable reference for readers interested in the physiology of fishes.

This enlightening new volume details over 200 species of bioluminescent marine fishes along with their biotechnological and therapeutic applications. It delves into the chemistry, diversity, biology, and functions of these fishes. Bioluminescence, which is a type of chemiluminescence and is a "cold living light," is seen in a wide variety of organisms from bacteria to fish. The chemicals and circumstances of this phenomenon are used for biotechnological, commercial, and therapeutic applications. Bioluminescence imaging technology has provided valuable means for the monitoring of different biological processes for immunology, oncology, virology, and neuroscience. A new emerging biological technique that combines luminescence with optogenetics involves the use of light to control cells, particularly neurons, in living tissue. Bioluminescence may also be as a potential form of green energy. The author states that more than 75% of deep-sea creatures (700 marine genera within 16 phyla) have been estimated to possess this phenomenon of bioluminescence. While marine plants do not display bioluminescence, several organisms such as the dinoflagellate, cnidarian, jellyfish, ostracod crustacean, molluscan squids and lantern fish are well known for their luminescence. Bioluminescence is employed by marine organisms mainly to hunt their prey, to defend against predators and in reproduction. This scientifically comprehensive and well-illustrated book will serve as an essential standard reference for students and teachers as well as marine biologists, fisheries scientists, zoologists, and environmentalists.

In recent years, progress in fish biology has advanced at an unprecedented rate and has led to many breakthroughs in the field. This book provides a wealth of information on the strategies that fish adopt with respect to waters with markedly different physical and chemical characteristics. It shows how their physiology, behaviour and lifestyles are adapted to exploit particular niches and gives comprehensive insight into fish life under extreme conditions. The readers are introduced to the ways in which fish exemplify many phenomena of general biological interest - the existence of competitors, chaos, and predator-prey interaction. Fish pathology as well as the components of the immune system are addressed. In this book, original and at times controversial views are presented, areas which have so far received inadequate attention are highlighted and avenues for further research are suggested.