Here, between the covers of one capacious book, is an illustrated summary of all the creatures that have ever lived, a vast compendium of earth's current and former inhabitants in all their dazzling and infinite diversity.
Colin Tudge argues that we are entering a new phase of biology in which, for the first time, biologists are achieving profound insight into life's true diversity and developing the tools to keep track of it. The Variety of Life heralds this new phase. The first part of the book describes why biologists now feel that there could have been as many as 4,000 billion species on Earth since life began. It then discusses the need for classification, beginning with the most basic principles--the strictly practical classification of fishmongers and foresters, who speak of "shellfish" and differentiate "hardwood" from "softwood"--and moves on to explore the intriguing deliberations of the modern "transformed cladists" and the novel contributions of molecular genetics. Part II describes the creatures themselves. It is divided into 24 sections, each describing a different group, illustrated by nearly 50 double-page spreads which present genealogical "trees" that summarize the evolutionary relationships between the creatures in each group. Some sections describe large, comprehensive groups such as the kingdoms of the Animals or the Plants. Others treat similar sub-groups in more detail, such as the Mammals, a class, or the Hominids, a family. In lively and accessible prose, all the significant groups of creatures--both alive and extinct--are described and their relationships clarified.
For general readers and serious biologists alike, The Variety of Life offers an unprecedented storehouse of knowledge of life on earth.
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It takes a brave writer to tackle the truly Herculean task of describing The Variety of Life with the astronomical numbers of organisms living today, let alone all those that have fallen by the wayside over the billions of years of life on Earth. No one is quite sure how many living species there are, but it is estimated to be somewhere between 10 million and 100 million. Fortunately, since the days of the great Swedish naturalist Linnaeus, around 250 years ago, life has been grouped and classified into hierarchical schemes. As a result, it is possible to encompass this enormous variety of life by describing the relatively few groups into which it can be clustered. And, since the mid-19th century and the Darwin-Wallace theory of evolution by natural selection, classification has taken on an extra, evolutionary dimension.
Colin Tudge, a well-known British science writer, has training in whole animal biology and a self-proclaimed love for the natural-historical foray among our fellow creatures. The first part of this big book (all of 90 pages) deals with the thorny problems of what Tudge rightly calls the craft and science of classification. Since the 1950s, the word cladistics has terrorized many traditional naturalists and biologists. But it is here to stay, and Tudge provides a very welcome guide that will be invaluable to both lay people and students.
The bulk of the text, nearly 500 pages, forms part II and includes the descriptions of the main groups, from the most primitive (alpha proteobacteria) prokaryotes to Eupatorium, a large genus of 1,800 or so species of plant. In between these two groups, at either end of the biological spectrum, lie all the more familiar bugs and beasts, including ourselves. Inevitably, given so many millions of organisms, difficult choices have to be made. Some groups are only dealt with at phylum level (for example, brachiopods), while others are detailed down to family level (for example, primates). Some extinct groups (not surprisingly, the dinosaurs) get a look, but not many overall. The short epilogue concerns conservation and is followed by a useful reference list of sources and an index. Altogether, the 600-odd pages are enlivened with a large number of excellent black-and-white drawings of individual organisms and diagrams illustrating evolutionary relationships. For all natural historians and anyone interested in biology, the The Variety of Life is a must. --Douglas Palmer, Amazon.co.ukAbout the Author:
Colin Tudge, a former features editor for New Scientist, is the author of Global Ecology, Last Animals in the Zoo, The Environment of Life, (OUP) and many other books. He lives in London.
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Descripción Oxford University Press, 2000. Hardcover. Estado de conservación: New. book. Nº de ref. de la librería M0198503113
Descripción Oxford University Press, 2000. Hardcover. Estado de conservación: New. Never used!. Nº de ref. de la librería P110198503113
Descripción Oxford University Press, USA, 2000. Hardcover. Estado de conservación: New. Nº de ref. de la librería DADAX0198503113
Descripción Oxford University Press. Hardcover. Estado de conservación: New. 0198503113 New Condition. Nº de ref. de la librería NEW7.0045052