Guppy Care Simplified


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Today's Basic Science


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Improbable Destinies


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A major new book overturning our assumptions about how evolution works Earth’s natural history is full of fascinating instances of convergence: phenomena like eyes and wings and tree-climbing lizards that have evolved independently, multiple times. But evolutionary biologists also point out many examples of contingency, cases where the tiniest change—a random mutation or an ancient butterfly sneeze—caused evolution to take a completely different course. What role does each force really play in the constantly changing natural world? Are the plants and animals that exist today, and we humans ourselves, inevitabilities or evolutionary flukes? And what does that say about life on other planets? Jonathan Losos reveals what the latest breakthroughs in evolutionary biology can tell us about one of the greatest ongoing debates in science. He takes us around the globe to meet the researchers who are solving the deepest mysteries of life on Earth through their work in experimental evolutionary science. Losos himself is one of the leaders in this exciting new field, and he illustrates how experiments with guppies, fruit flies, bacteria, foxes, and field mice, along with his own work with anole lizards on Caribbean islands, are rewinding the tape of life to reveal just how rapid and predictable evolution can be. Improbable Destinies will change the way we think and talk about evolution. Losos's insights into natural selection and evolutionary change have far-reaching applications for protecting ecosystems, securing our food supply, and fighting off harmful viruses and bacteria. This compelling narrative offers a new understanding of ourselves and our role in the natural world and the cosmos.




The Origin Then and Now


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An accessible modern guide to Darwin's masterwork Charles Darwin's Origin of Species is one of the most widely cited books in modern science. Yet tackling this classic can be daunting for students and general readers alike because of Darwin's Victorian prose and the complexity and scope of his ideas. The "Origin" Then and Now is a unique guide to Darwin's masterwork, making it accessible to a much wider audience by deconstructing and reorganizing the Origin in a way that allows for a clear explanation of its key concepts. The Origin is examined within the historical context in which it was written, and modern examples are used to reveal how this work remains a relevant and living document for today. In this eye-opening and accessible guide, David Reznick shows how many peculiarities of the Origin can be explained by the state of science in 1859, helping readers to grasp the true scope of Darwin's departure from the mainstream thinking of his day. He reconciles Darwin's concept of species with our current concept, which has advanced in important ways since Darwin first wrote the Origin, and he demonstrates why Darwin's theory unifies the biological sciences under a single conceptual framework much as Newton did for physics. Drawing liberally from the facsimile of the first edition of the Origin, Reznick enables readers to follow along as Darwin develops his ideas. The "Origin" Then and Now is an indispensable primer for anyone seeking to understand Darwin's Origin of Species and the ways it has shaped the modern study of evolution.




Livebearers


Book Description

Livebearers focuses on four families of fish which contain many of the most attractive and popular species in the tropical fish hobby today, including guppies, mollies, swordtails, and platies. The families include Goodeidae (Mexican livebearers), Anablepidae (four-eyes and others), Poeciliidae (guppies and others); and Hemirhamphidae (halfbeaks). Author David Alderton explains that hobbyists have applied the term livebearer to these four families for convenience even though there are fourteen families in the wild that reproduce by bearing live young. The chapter “Where in the World?” focuses on the natural history of these families, their distribution, and lifestyles. Hobbyists looking to begin an aquarium of livebearers or to expand their existing communities will find useful information in the chapter called “The Different Groups,” in which Alderton discusses age considerations, health matters, and sex. The chapter also describes the four families and the most common genus/species of each. Included are sixteen representatives of the Family Goodeidae (e.g., Allodontichth, Characodon, and Skiffia), three genus of the Family Anablepidae (Anableps, Jenynsia, and Oxyzgonectes), twenty-six representatives of the Family Poeciliidae (e.g., Belonesox, Fiexipenis, and Limia); and three genus of the Family Hemirhamphidae (Dermogenys, Hemirhamphodon, and Namorhamphus). This colorful, user-friendly guide offers basic information on the anatomical characteristics, housing options, required aquarium equipment for livebearers as well as their feeding habits and food requirements (greenstuff, carotene-rich foods, live foods, meat, etc.). The breeding habits of livebearers have ensured their popularity with hobbyists, and the chapter on reproduction describes the various breeding habits of livebearers and outlines successful breeding strategies for interested hobbyists. In the chapter on health care, the author offers solid advice about caring for livebearers to maximize their lifespan in captivity, which is typically only a few years. He also gives information on signs of illness and some basic diseases that can be treated by the fish keeper. The final chapter offers photographs and distribution maps for sixteen popular livebearers of all four families, including information on size, physical description, natural habitat and behavior, and required aquarium conditions. The author’s livebearer hit parade includes the butterfly goodeid, rainbow goodeid, black-finned goodea, four-eyed fish, guppy (millions fish), black molly, sailfin molly, swordtail, platy (moonfish), mosquito fish (dwarf and large), humpbacked (black-barred) limia, black-bellied limia, pike livebearer (piketop minnow), knife (Alfaro’s) livebearer, and wrestling halfbeak. Resources, glossary, and index included.




Guppies


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A guide to keeping guppies, describing the different varieties that exist, breeding strategies, care and feeding, aquarium maintenance, and more.




All Hands


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The Children's Hour: Stories of today


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A selection from the great children's literature of all time.




The Science of Why We Exist


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From the Big Bang and the evolution of the genetic code to the birth of consciousness, this is the extraordinary story of the chain of events that led to human life on earth. Have you ever wondered why you exist? What had to happen for you to be alive and conscious? Scientists have come a long way in answering this question, and this book describes what they have found out. It also examines whether our existence was inevitable at the universe’s birth 13.77 billion years ago—or whether we are just incredibly lucky. The book is aimed at readers who are interested in science but are not experts. Written in an entertaining and accessible style, the narrative begins by describing how scientists discover facts before taking the reader on a journey from the Big Bang to the creation of the human genome. Covering physics, astronomy, chemistry, earth sciences, the emergence of life, evolution, consciousness, the rise of humanity, and how our personalities are moulded by genes, chance, and the environment, the journey explains how the universe started as point of intense energy that over time, in our corner of the universe, resulted in our wonderful planet—and in you.




India Today [2 volumes]


Book Description

Containing almost 250 entries written by scholars from around the world, this two-volume resource provides current, accurate, and useful information on the politics, economics, society, and cultures of India since 1947. With more than a billion citizens—almost 18 percent of the world's population—India is a reflection of over 5,000 years of interaction and exchange across a wide spectrum of cultures and civilizations. India Today: An Encyclopedia of Life in the Republic describes the growth and development of the nation since it achieved independence from the British Raj in 1947. The two-volume work presents an analytical review of India's transition from fledgling state to the world's largest democracy and potential economic superpower. Providing current data and perspective backed by historical context as appropriate, the encyclopedia brings together the latest scholarship on India's diverse cultures, societies, religions, political cultures, and social and economic challenges. It covers such issues as foreign relations, security, and economic and political developments, helping readers understand India's people and appreciate the nation's importance as a political power and economic force, both regionally and globally.