LEWIS CARROLL'S CATS AND RATS

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British–Israeli recreational mathematician, communicator and educator, Yossi Elran explores in-depth six of the most ingenious math puzzles, exposing their long "tails": the stories, trivia, quirks and oddities of their history and, of course, the math and mathematicians behind them. In his unique "talmudic", associative way, Elran shows the hidden connections between Lewis Carroll's "Cats and Rats" puzzle and the math of taxi driving, a number pyramid magic trick and Hollywood movie fractals, and even how packing puzzles are related to COVID-19! Elran has a great talent for explaining difficult topics — including quantum mechanics, a topic he relates to some original "operator" puzzles — making the book very accessible for all audiences. With over 40 additional, original puzzles, and touching on dozens of hot math topics, this is a perfect book for math lovers, educators, kids and adults, and anyone who loves a great read. Yossi Elran is co-author of our bestselling The Paper Puzzle Book, and heads the Innovation Center at the Davidson Institute of Science Education, the educational arm of the world-renowned Weizmann Institute of Science in Israel.

Free-ranging Cats: Behavior, Ecology, Management

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【簡介】 Feral and stray domestic cats occupy many different habitats. They can resist dehydration for months by relying exclusively on the tissue water of their prey allowing them to colonize remote deserts and other inhospitable places. They thrive and reproduce in humid equatorial rainforests and windswept subantarctic islands. In many areas of the world feral cats have driven some species of birds and mammals to extinction and others to the edge, becoming a huge conservation concern. With the control of feral and stray cats now a top conservation priority, biologists are intensifying efforts to understand cat behaviour, reproductive biology, use of space, intraspecies interaction, dietary requirements, prey preferences, and vulnerability to different management strategies. This book provides the most comprehensive review yet published on the behavior, ecology and management of free-ranging domestic cats, whether they be owned, stray, or feral. It reviews management methods and their progress, and questions several widely accepted views of free-ranging cats, notably that they live within dominance hierarchies and are highly social. Insightful and objective, this book includes: a functional approach, emphasizing sensory biology, reproductive physiology, nutrition, and space partitioning; clear treatment of how free-ranging cats should be managed; extensive critical interpretation of the world's existing literature; results of studies of cats in laboratories under controlled conditions, with data that can also be applied to pet cats. Free-ranging Cats: Behavior, Ecology, Management is valuable to ecologists, conservation scientists, animal behaviorists, wildlife nutritionists, wildlife biologists, research and wildlife veterinarians, clinical veterinarians, mammalogists, and park and game reserve planners and administrators. 【目錄】