Author: Arthur DendyPublisher:
ISBN:
Category : Sponges
Languages : en
Pages : 0
Book Description
Studies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: A. DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyStudies on the Comparative Anatomy of Sponges
Author: Arthur DendyThe Comparative Embryology of Sponges
Author: Alexander V. EreskovskyPublisher: Springer Science & Business Media
ISBN: 9048185750
Category : Science
Languages : en
Pages : 382
Book Description
One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera. The book pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis. This book will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.
Your Inner Fish
Author: Neil ShubinPublisher: Vintage
ISBN: 0307377164
Category : Science
Languages : en
Pages : 258
Book Description
The paleontologist and professor of anatomy who co-discovered Tiktaalik, the “fish with hands,” tells a “compelling scientific adventure story that will change forever how you understand what it means to be human” (Oliver Sacks). By examining fossils and DNA, he shows us that our hands actually resemble fish fins, our heads are organized like long-extinct jawless fish, and major parts of our genomes look and function like those of worms and bacteria. Your Inner Fish makes us look at ourselves and our world in an illuminating new light. This is science writing at its finest—enlightening, accessible and told with irresistible enthusiasm.