Search results for: amphibians-a-very-short-introduction

Amphibians A Very Short Introduction

Author : T. S. Kemp
File Size : 69.57 MB
Format : PDF, Docs
Download : 948
Read : 1067
Download »
Very Short Introductions: Brilliant, Sharp, Inspiring From frogs, toads, newts, and salamanders, to the lesser-known caecilians, there are over 8,000 species of amphibians alive today. Characterised by their moist, naked skin and the tadpole phase of their lives, they are uniquely adapted to occupy the interphase habitat between freshwater and land. This Very Short Introduction explores amphibians' evolution, adaptations, and biology, from the first emergence of tetrapods onto land 370 million years ago, to how their permeable skin enables them to thrive in their habitat today. T. S. Kemp describes how different amphibians go about their lives, looking in particular at their complex courtship behaviour and their extraordinary means of providing care for their eggs and larvae. Finally, he considers amphibians' relationship to humans, and the ways in which they have been exploited as food, folk medicine, and pets, as well as used in many areas of scientific research. Today amphibians face a serious threat, with almost half of species judged to be at risk of extinction. As the causes include habitat destruction, pollution, and disease, mostly resulting from human activity, T. S. Kemp shows that the conservation of amphibians is very much in our hands. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Teeth A Very Short Introduction

Author : Peter S. Ungar
File Size : 84.11 MB
Format : PDF, ePub, Mobi
Download : 520
Read : 263
Download »
Teeth are amazing - the product of half a billion years of evolution. They provide fuel for the body by breaking apart other living things; and they must do it again and again over a lifetime without themselves being broken in the process. This means that plants and animals have developed tough or hard tissues for protection, and teeth have evolved ways to sharpen or strengthen themselves to overcome those defences. And just as different jobs require different tools, animals with different diets have different shaped teeth to deal with the variety of foods that they eat. In this Very Short Introduction, Peter S. Ungar, an award-winning author and leading scientist, presents the story of teeth. Ungar outlines the key concepts, including insights into the origin of teeth and their evolution. Considering why teeth are important, he describes how they are made, and how they work, including their fundamental importance in the fossil record. Ungar finishes with a review of mammal teeth, looking at how they evolved and how recent changes to our diet are now affecting dental health. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

The History of Life A Very Short Introduction

Author : Michael J. Benton
File Size : 22.97 MB
Format : PDF, ePub
Download : 710
Read : 295
Download »
This Very Short Introduction presents a succinct and accessible guide to the key episodes in the story of life on earth - from the very origins of life four million years ago to the extraordinary diversity of species around the globe today.

The Animal Kingdom A Very Short Introduction

Author : Peter Holland
File Size : 63.27 MB
Format : PDF, ePub, Mobi
Download : 667
Read : 1278
Download »
The animal world is immensely diverse, and our understanding of it has been greatly enhanced by analysis of DNA and the study of evolution and development ('evo-devo'). In this Very Short Introduction Peter Holland presents a modern tour of the animal kingdom. Beginning with the definition of animals (not obvious in biological terms), he takes the reader through the high-level groupings of animals (phyla) and new views on their evolutionary relationships based on molecular data, together with an overview of the biology of each group of animals. The phylogenetic view is central to zoology today and the volume will be of great value to all students of the life sciences, as well as providing a concise summary for the interested general reader. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Veterinary Science A Very Short Introduction

Author : James Yeates
File Size : 75.96 MB
Format : PDF, ePub
Download : 942
Read : 1229
Download »
Every year billions of animals, from housecats to racehorses to pythons, are treated by veterinarians. The use of veterinary science to treat the health of animals has a long history; for the past five centuries it has developed as our understanding of animals' fundamental biology, pathology, and pharmacology has grown. Rapid global changes expected in the twenty-first century will require the profession to respond proactively, embracing new challenges and opportunities. James Yeates, Chief Veterinary Officer of the RSPCA, introduces the field of veterinary science, covering the history of its scientific and clinical aspects from early practices to recent challenges such as the outbreak of BSE and antibiotic resistance, and considering the differences between human medicine and veterinary medicine. Analysing the key roles played by diagnosis, treatment, and prevention with regard to the health of farm animals and pets, he relates this to wider aspects concerning public health, such as zoonoses (diseases that jump from animals to humans). Yeates also covers recent 'One Health' approaches involving the health of both humans and animals, seen as synergistic, and discusses the challenges for the future of veterinary medicine, including the ethical dilemmas in balancing the interests of owners and animals when they do not coincide. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Sleep A Very Short Introduction

Author : Steven W. Lockley
File Size : 39.50 MB
Format : PDF, Mobi
Download : 418
Read : 820
Download »
Explores sleep disorders, describes breakthroughs in the study of sleep, and considers the impact of modern society on it.

Infectious Disease A Very Short Introduction

Author : Marta Wayne
File Size : 85.60 MB
Format : PDF, Mobi
Download : 335
Read : 359
Download »
As doctors and biologists have learned, to their dismay, infectious disease is a moving target: new diseases emerge every year, old diseases evolve into new forms, and ecological and socioeconomic upheavals change the transmission pathways by which disease spread. By taking an approach focused on the general evolutionary and ecological dynamics of disease, this Very Short Introduction provides a general conceptual framework for thinking about disease. Ecology and evolution provide the keys to answering the 'where', 'why', 'how', and 'what' questions about any particular infectious disease: where did it come from? How is it transmitted from one person to another, and why are some individuals more susceptible than others? What biochemical, ecological, and evolutionary strategies can be used to combat the disease? Is it more effective to block transmission at the population level, or to block infection at the individual level? Through a series of case studies, Benjamin Bolker and Marta L. Wayne introduce the major ideas of infectious disease in a clear and thoughtful way, emphasising the general principles of infection, the management of outbreaks, and the evolutionary and ecological approaches that are now central to much research about infectious disease. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Mountains A Very Short Introduction

Author : Martin Price
File Size : 62.62 MB
Format : PDF, ePub, Docs
Download : 854
Read : 1199
Download »
Mountains cover a quarter of the Earth's land surface and are home to about 12 percent of the global population. They are the sources of all the world's major rivers, affect regional weather patterns, provide centres of biological and cultural diversity, hold deposits of minerals, and provide both active and contemplative recreation. Yet mountains are also significantly affected by climate change; as melting and retreating glaciers show. Given the manifold goods and services which mountains provide to the world, such changes are of global importance. In this Very Short Introduction, Martin Price outlines why mountains matter at the global level, and addresses the existing and likely impacts of climate change on mountain, hydrological and ecological systems. Considering the risks associated with the increasing frequency of extreme events and 'natural hazards' caused by climate change, he discusses the implications for both mountain societies and wider populations, and concludes by emphasizing the need for greater cooperation in order to adapt to climate change in our increasingly globalized world. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Teeth

Author : Peter S. Ungar
File Size : 59.24 MB
Format : PDF
Download : 270
Read : 621
Download »
Teeth are a vital component of vertebrate anatomy and a fundamental part of the fossil record. It was the evolution of teeth, associated with predation, that drove the evolution of the wide array of fish, amphibians, reptiles, and then mammals. Peter S. Ungar looks at how, without teeth, none of these developments could have occurred.

Fungi A Very Short Introduction

Author : Nicholas P. Money
File Size : 64.15 MB
Format : PDF, Kindle
Download : 690
Read : 691
Download »
The variety of the mycological world is far greater than most people imagine. Tens of thousands of fungal species have been described and many more are known only from the abundance of their genes in soil and water. Fungi are hugely important as agents of wood decay in forests, and, as parasites, they have caused the deaths of millions of people by ravaging crops and reshaping natural ecosystems. Fungi perform a variety of essential functions in ecosystems, and are important to both agriculture and biotechnology. Their importance is now becoming better appreciated among scientists, though there is much still to be understood concerning their taxonomy and evolution. This Very Short Introduction highlights the variety and extraordinary natures of fungi, revealing the remarkable facts of fungal biology and the global significance of these enchanting organisms. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.