The Journal of Experimental Zoology PDF Download
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Author: Ross Granville Harrison
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 562
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Book Description
A separate section of the journal, Molecular and developmental evolution, is devoted to experimental approaches to evolution and development.
Author: Ross Granville Harrison
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 562
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Book Description
A separate section of the journal, Molecular and developmental evolution, is devoted to experimental approaches to evolution and development.
Author: Osborn Zoological Laboratory
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 616
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Book Description
Author: Osborn Zoological Laboratory
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 482
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Book Description
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Author: Johns Hopkins University
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1364
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Book Description
Author: Michel Anctil
Publisher: McGill-Queen's Press - MQUP
ISBN: 0773597336
Category : Science
Languages : en
Pages : 385
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Book Description
In science, sometimes it is best to keep things simple. Initially discrediting the discovery of neurons in jellyfish, mid-nineteenth-century scientists grouped jellyfish, comb-jellies, hydra, and sea anemones together under one term - "coelenterates" - and deemed these animals too similar to plants to warrant a nervous system. In Dawn of the Neuron, Michel Anctil shows how Darwin's theory of evolution completely eradicated this idea and cleared the way for the modern study of the neuron. Once zoologists accepted the notion that varying levels of animal complexity could evolve, they began to use simple-structured creatures such as coelenterates and sponges to understand the building blocks of more complicated nervous systems. Dawn of the Neuron provides fascinating insights into the labours and lives of scientists who studied coelenterate nervous systems over several generations, and who approached the puzzling origin of the first nerve cells through the process outlined in evolutionary theory. Anctil also reveals how these scientists, who were willing to embrace improved and paradigm-changing scientific methods, still revealed their cultural backgrounds, their societal biases, and their attachments to schools of thought and academic traditions while presenting their ground-breaking work. Their attitudes toward the neuron doctrine - where neurons are individual, self-contained cells - proved decisive in the exploration of how neurons first emerged. Featuring photographs and historical sketches to illustrate this quest for knowledge, Dawn of the Neuron is a remarkably in-depth exploration of the link between Darwin's theory of evolution and pioneering studies and understandings of the first evolved nervous systems
Author: Philip C. Withers
Publisher: Oxford University Press
ISBN: 0191092673
Category : Science
Languages : en
Pages : 607
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Book Description
Mammals are the so-called "pinnacle" group of vertebrates, successfully colonising virtually all terrestrial environments as well as the air (bats) and sea (especially pinnipeds and cetaceans). How mammals function and survive in these diverse environments has long fascinated mammologists, comparative physiologists and ecologists. Ecological and Environmental Physiology of Mammals explores the physiological mechanisms and evolutionary necessities that have made the spectacular adaptation of mammals possible. It summarises our current knowledge of the complex and sophisticated physiological approaches that mammals have for survival in a wide variety of ecological and environmental contexts: terrestrial, aerial, and aquatic. The authors have a strong comparative and quantitative focus in their broad approach to exploring mammal ecophysiology. As with other books in the Ecological and Environmental Physiology Series, the emphasis is on the unique physiological characteristics of mammals, their adaptations to extreme environments, and current experimental techniques and future research directions are also considered. This accessible text is suitable for graduate level students and researchers in the fields of mammalian comparative physiology and physiological ecology, including specialist courses in mammal ecology. It will also be of value and use to the many professional mammologists requiring a concise overview of the topic.
Author: Pieter D. Nieuwkoop
Publisher: CUP Archive
ISBN: 9780521251075
Category : Science
Languages : en
Pages : 436
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Book Description
This volume summarises our present knowledge of inductive interaction during early development of various groups of chordates. Embryonic development is mainly epigenetic, that is, each embryo arises through gradual organisation and emergence of its constituent parts and not by the unfolding of preformed structures. Development as far as the full development of the 'body plan' in the embryo is described. At the beginning of development, there is only very restricted spatial diversity, but as development proceeds the interaction of the different parts leads to ever-increasing spatial complexity of the developing embryo. Interaction starts between the different cell organelles of the oocyte and the, spermatozoon; it continues without interruption between the different parts of the very early embryo and also between the different tissues and organ anlagen of the developing embryo. The new hypothesis as to the nature of the inductive interaction, which is postulated here, is in good agreement with the experimental evidence presented and opens new possibilities for fruitful research into this basic concept of embryonic development.
Author: Denis Lynn
Publisher: Springer Science & Business Media
ISBN: 1402082398
Category : Science
Languages : en
Pages : 627
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Book Description
distances between groups of ciliates were as vast as significant hurdles to obtain copyright permissions the genetic distances between plants and animals for the over 1,000 required illustrations, and I put – THE major eukaryotic kingdoms at that time! the publication schedule ahead of this element. I continued to collaborate with Mitch, and in There are a number of significant illustrated guides 1991 my first “molecular” Magisterial student, to genera and species that have recently been pub- Spencer Greenwood, published an article estab- lished. References are made to these throughout lishing 1990 or thereabouts as the beginning of the book as sources that readers can consult for this the “Age of Refinement” – the period when gene aspect of ciliate diversity. A future project that I am sequencing techniques would deepen our under- contemplating is an illustrated guide to all the valid standing of the major lines of evolution within ciliate genera.
Author: Laurie J. Vitt
Publisher: Academic Press
ISBN: 012386920X
Category : Science
Languages : en
Pages : 773
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Book Description
The fourth edition of the textbook Herpetology covers the basic biology of amphibians and reptiles, with updates in nearly every conceptual area. Not only does it serve as a solid foundation for modern herpetology courses, but it is also relevant to courses in ecology, behavior, evolution, systematics, and morphology. Examples taken from amphibians and reptiles throughout the world make this book a useful herpetology textbook in several countries. Naturalists, amateur herpetologists, herpetoculturists, zoo professionals, and many others will find this book readable and full of relevant natural history and distributional information. Amphibians and reptiles have assumed a central role in research because of the diversity of ecological, physiological, morphological, behavioral, and evolutionary patterns they exhibit. This fully revised edition brings the latest research to the reader, ranging over topics in evolution, reproduction, behavior and more, allowing students and professionals to keep current with a quickly moving field. - Heavily revised and updated with discussion of squamate (lizard and snake) taxonomy and new content reflected in current literature - Includes increased focus on conservation biology in herpetology while retaining solid content on organismal biology of reptiles and amphibians - Presents new photos included from authors' extensive library
Author: National Agricultural Library (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 1338
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Book Description
