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Author: Prim-Ed Publishing Staff
Publisher: R.I.C. Publications
Published: 1998
Total Pages: 41
ISBN-13: 1864002999
DOWNLOAD EBOOKA photocopiable series for primary age range. It provides activities that are organised into three-page units, consisting of: passage of text and questions to develop note-making skills; cloze activity on passage of text; and, comprehension questions at three levels of questioning and word study activity.
Author: Janet Leonard
Publisher: Oxford University Press
Published: 2010-07-16
Total Pages: 550
ISBN-13: 0199717036
DOWNLOAD EBOOKPrimary sexual traits, those structures and processes directly involved in reproduction, are some of the most diverse, specialized, and bizarre in the animal kingdom. Moreover, reproductive traits are often species-specific, suggesting that they evolved very rapidly. This diversity, long the province of taxonomists, has recently attracted broader interest from evolutionary biologists, especially those interested in sexual selection and the evolution of reproductive strategies. Primary sexual characters were long assumed to be the product of natural selection, exclusively. A recent alternative suggests that sexual selection explains much of the diversity of "primary" sexual characters. A third approach to the evolution of reproductive interactions after copulation or insemination has been to consider the process one of sexual conflict. That is, the reproductive processes of a species may reflect, as does the mating system, evolution acting on males and on females, but in different directions. In this volume, authors explore a wide variety of primary sexual characters and selective pressures that have shaped them, from natural selection for offspring survival to species-isolating mechanisms, sperm competition, cryptic female choice and sexual arms races. Exploring diverse reproductive adaptations from a theoretical and practical perspective, The Evolution of Primary Sexual Characters will provide an unparalleled overview of sexual diversity in many taxa and an introduction to the issues in sexual selection that are changing our view of sexual processes.
Author: Peter K. Vogt
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 176
ISBN-13: 3642804519
DOWNLOAD EBOOKWhen it comes to bacterial disease, we are living in a state of false security. Antibiotics have indeed brought unprecedented health benefits, protection from and cure of bacterial diseases during the past 50 years. But there are ominous signs that the fortress and the defenses built on antibiotics are crumbling. They are crum bling because we wittingly or unwittingly created selective con ditions for the emergence of superior pathogens that can no longer be controlled by antibiotics. There are numerous warnings. After a long period of eclipse tuberculosis has now emerged as a serious threat unchecked by antibiotic treatment. Recent years have seen reports of cholera epidemics, of anthrax infections, of serious problems with Salmonella and even with E. coli, just to name a few. Mankind is in a race with microbial invaders. The challenge is to anticipate and respond to developments that affect the precarious balance between man and microbe. This will re quire new knowledge and it will take time for an effective appli cation of that knowledge.
Author: Coyote Peterson
Publisher: Little, Brown Books for Young Readers
Published: 2019-09-10
Total Pages: 235
ISBN-13: 0316452394
DOWNLOAD EBOOKWildlife expert and YouTube phenomenon, Coyote Peterson, is back with the sequel to the bestselling Brave Adventures: Wild Animals in a Wild World. Once again, Coyote and his crew voyage to new environments and encounter an even more eclectic ensemble of the planets' animals. From a slimy octopus to elusive tree climbing lizards to nomadic wolverines--this book promises to be another fast-paced, wild experience. Coyote will take readers for a hike through a snake infested island, kayak the ocean to discover a migrating pod of killer whales, and track a pride of lions across the South African savanna! You don't want to miss these never-before-told brave adventures, guaranteed to be a hit with Coyote's 13 million fans as well as animal lovers around the world! Includes over one hundred hand-drawn, black-and-white illustrations throughout.
Author: D. S. Mills
Publisher: CABI
Published: 2010
Total Pages: 701
ISBN-13: 0851997244
DOWNLOAD EBOOKThe practical focus of this authoritative, comprehensive encyclopedia promotes the understanding and improvement of animals' behaviour without compromising welfare. It will be an essential resource for practising veterinarians, researchers and students in zoology and ethology, and for all those working with and interested in animals and their welfare. --Book Jacket.
Author:
Publisher:
Published: 1977
Total Pages: 278
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard L. Everett
Publisher:
Published: 1985
Total Pages: 876
ISBN-13:
DOWNLOAD EBOOKAuthor: Jonathan Kingdon
Publisher: A&C Black
Published: 2013-05-23
Total Pages: 3500
ISBN-13: 1408189968
DOWNLOAD EBOOKMammals of Africa (MoA) is a series of six volumes which describes, in detail, every currently recognized species of African land mammal. This is the first time that such extensive coverage has ever been attempted, and the volumes incorporate the very latest information and detailed discussion of the morphology, distribution, biology and evolution (including reference to fossil and molecular data) of Africa's mammals. With 1,160 species and 16 orders, Africa has the greatest diversity and abundance of mammals in the world. The reasons for this and the mechanisms behind their evolution are given special attention in the series. Each volume follows the same format, with detailed profiles of every species and higher taxa. The series includes some 660 colour illustrations by Jonathan Kingdon and his many drawings highlight details of morphology and behaviour of the species concerned. Diagrams, schematic details and line drawings of skulls and jaws are by Jonathan Kingdon and Meredith Happold. Every species also includes a detailed distribution map. Extensive references alert readers to more detailed information. Volume I: Introductory Chapters and Afrotheria (352 pages) Volume II: Primates (560 pages) Volume III: Rodents, Hares and Rabbits (784 pages) Volume IV: Hedgehogs, Shrews and Bats (800 pages) Volume V: Carnivores, Pangolins, Equids and Rhinoceroses (560 pages) Volume VI: Pigs, Hippopotamuses, Chevrotain, Giraffes, Deer and Bovids (704 pages)
Author: Alberto Arab
Publisher: Frontiers Media SA
Published: 2023-08-16
Total Pages: 206
ISBN-13: 2832530885
DOWNLOAD EBOOKTermites are eusocial insects that live in colonies composed of hundreds to millions of individuals. Their colonies are mainly organized into reproductive and non-reproductive castes, which have specific tasks such as nest construction, foraging, reproduction, brood care, and colony defense. The evolution of the symbiotic association between termites and microorganisms allows them to decompose ingested lignocellulose from plant substrates (such as wood), including herbivore dung and soil humus, making them important insect decomposers that play a crucial role in ecosystem functioning by contributing to litter decomposition, soil formation, and nutrient cycling. On the other hand, termites have recently been classified as eusocial cockroaches, which have gained increasing attention in evolutionary studies to understand the transition to eusociality from subsocial wood roaches. This current growing interest in termite research calls for a collection dedicated to these fascinating insects.
Author: S. J. Hawkins
Publisher: CRC Press
Published: 2017-11-20
Total Pages: 489
ISBN-13: 1351987585
DOWNLOAD EBOOKEver-increasing interest in oceanography and marine biology and their relevance to global environmental issues create a demand for authoritative reviews summarizing the results of recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its founding by the late Harold Barnes more than 50 years ago. Its objectives are to consider, annually, the basic areas of marine research, returning to them when appropriate in future volumes; to deal with subjects of special and topical importance; and to add new subjects as they arise. The favourable reception and complimentary reviews accorded to all the volumes shows that the series is fulfilling a very real need. Volume 55 follows closely the objectives and style of the earlier volumes, continuing to regard the marine sciences—with all their various aspects—as a unity. Physical, chemical, and biological aspects of marine science are dealt with by experts actively engaged in these fields, and every chapter is peer-reviewed by other experts working actively in the specific areas of interest. Chapters 3, 4, 5, and 6 of this book are freely available as downloadable Open Access PDFs at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license.
