This friendly guide answers all your questions, from setting up your tank and selecting fish to the water, chemicals, plants, and much more. There's also expanded guidance on combining different species of fish, maintaining a tank, cleaning gravel, and dealing with common problems such as algae. Discover how to * Choose the right aquarium * Select the best fish * Get good deals on equipment * Maintain a clean, healthy environment * Handle tank pitfalls * Breed your fish

    Judy Mikovits and Kent Heckenlively, this book reviews the evidence for and against widespread public masking as provided by the Centers for Disease Control and the Mayo Clinic, as well as top scientific publications such as the New England Journal of Medicine and The Lancet. This debate needs to take place without fear and paranoia. Important questions raised in this book are the affect of masks on oxygen and carbon dioxide levels, how SARS-CoV-2 spreads, the effectiveness of various types of masks, those who are most vulnerable to COVID-19, and whether our children should go back to school in the fall, and if so, what measures they should take.The authors' previous book, PLAGUE OF CORRUPTION, was the runaway science bestseller of 2020, and the authors bring that same passion and attention to detail to the mask question. As politicians and bureaucrats of all stripes are weighing in on this question, with some placing their cities and states under mandatory masking provisions, we need to understand the science behind their decisions. Are such measures a reasonable response to current circumstances, or is it a dramatic overreach, which in many cases might make the situation even worse? America desperately needs this public conversation to take place with the best science we have available. As Americans have always done during difficult times, we must summon the courage to have these challenging conversations.

    

    In 1966, simple Darwinism, which holds that evolution functions primarily at the level of the individual organism, was threatened by opposing concepts such as group selection, a popular idea stating that evolution acts to select entire species rather than individuals. George Williams's famous argument in favor of the Darwinists struck a powerful blow to those in opposing camps. His Adaptation and Natural Selection, now a classic of science literature, is a thorough and convincing essay in defense of Darwinism; its suggestions for developing effective principles for dealing with the evolution debate and its relevance to many fields outside biology ensure the timelessness of this critical work.

    This fascination is driven by the ancient chemical forces that first drew humans and animals together. It is also the same biology that transformed wolves into dogs and skittish horses into valiant comrades that would carry us into battle.Made for Each Other is the first book to explain how this chemistry of attraction and attachment flows through--and between--all mammals to create the profound emotional bonds humans and animals still feel today.Drawing on recent discoveries from neuroscience, evolutionary biology, behavioral psychology, archeology, as well as her own investigations, Meg Daley Olmert explains why the brain chemistry humans and animals trigger in each other also has a profound effect on our mental and physical well being.This lively and original investigation asks what happens when the bond is severed. If thousands of years of caring for animals infused us with a biology that shaped our hearts and minds, do we dare turn our back on it? Daley Olmert makes a compelling and scientific case for what our hearts have always known, that we were, and always will be, made for each other.

    Taking a critical look at this little-understood biome, award-winning journalist Richard Manning urges the reclamation of this land, showing how the grass is not only our last connection to the natural world, but also a vital link to our own prehistoric roots, our history, and our culture. Framing his book with the story of the remarkable elk, whose mysterious wanderings seem to reclaim his ancestral plains, Manning traces the expansion of America into what was then viewed as the American desert and considers our attempts over the last two hundred years to control unpredictable land through plowing, grazing, and landscaping. He introduces botanists and biologists who are restoring native grasses, literally follows the first herd of buffalo restored to the wild prairie, and even visits Ted Turner's progressive--and controversial--Montana ranch. In an exploration of the grasslands that is both sweeping and intimate, Manning shows us how we can successfully inhabit this and all landscapes.

    This book offers an excellent foundation in ethical decision-making for current and future business managers and IT professionals.

    Ecosystem: Structure and Function Biogeochemical Cycles, Aquatic Ecosystems: Freshwater Communities, Estuaries and Marine Communities Terrestrial Ecosystems Pollution Ecology and Human Welfare Wild Life Management Biogeography, Adaptations Indices

    The book has the hallmark features for which Lippincott's Illustrated Reviews volumes are so popular: an outline format, over 600 full-color illustrations, end-of-chapter summaries, review questions, plus an entire section of clinical case studies with full-color illustrations. This edition's medical/clinical focus has been sharpened to provide a high-yield review. Five additional case studies have been included, bringing the total to nineteen. Review questions have been reformatted to comply with USMLE Step 1 style, with clinical vignettes.

    "Reading The Neanderthal Enigma is like sitting down with a wonderful storyteller in the cave where stories began." -- Jonathan Weiner, author of The Beak of the Finch..

    It isn't surprising then that Koestler should hark back to the opprobrious case of Dr Paul Kammerer, an Austrian biologist whose controversial experiments on the evolutionary process (using among other amphibians the midwife toad, so named for its mating habits) were denounced as fraudulent in 1926 by an American herpetologist, G.K. Noble, in the pages of Nature-- whereupon Kammerer blew his brains out, seemingly confirming the old saw "confession is suicide & suicide is confession." But Koestler's investigation, begun as a study of a scientist who betrayed his commitment to truth, indicates that Kammerer, far from being a laboratory quisling, was probably innocent; a victim of an unknown colleague's machinations to discredit his work & therefore in the larger sense a casualty of the still unresolved war between the nco-Darwinist evolutionists who support the random mutation theory & the heretical Lamarckians who maintain (as did Kammerer's experiments) that acquired characteristics can be transmitted from one generation to another. "I did not start with the intention to rehabilitate Paul Kammerer," says Koestler, "but I ended up with an attempt to do so." In the course of that effort he uses his skill as both inventive fantast & experienced researcher to give the midwife toad case a sense of drama & veracity. Those who found The Double Helix satisfying will enjoy this one too, no matter if they agree with Koestler's conclusions.--Kirkus (edited)

    It is rich in narrative, anecdote, attention to human detail, and stories of competition among scientists who have dominated the field.

    Calculus is not a prerequisite, although examples and exercises using very basic calculus are included (labeled Calculus Required.) The most technology-friendly text on the market, Introductory Linear Algebra is also the most flexible. By omitting certain sections, instructors can cover the essentials of linear algebra (including eigenvalues and eigenvectors), to show how the computer is used, and to introduce applications of linear algebra in a one-semester course.

    They are also one of the most endangered species in the world. For many years, mountain gorillas have faced the threat of t death at the hands of poachers. Funds raised by “gorilla tourism”––bringing people into the forest to see these majestic animals––have helped protect gorillas. This tourism is vital, but close contact between gorillas and people has brought a new threat to the mountain gorillas: human disease.The Mountain Gorilla Veterinary Project is a group of courageous and talented scientists working to save the mountain gorilla population in Rwanda and Uganda. The "Gorilla Doctors" study the effects of human exposure, document the daily lives of the gorillas, provide emergency care to injured animals, and even act as foster parents to an orphaned gorilla baby named Fearless. Through engaging text and stunning photographs, Pamela Turner takes readers on an exploration like no other in this gripping tale of science, nature, and conservation.

    Many new or revised figures and photographs, study questions and a glossary of key terms have been added.