Search results for ""author nancy castaldo""

In this exhilarating installment of the award-winning Scientists in the Field series, journey to the isolated islands of Isle Royale National Park where the longest predator/prey study in the world is being conducted along with a controversial genetic rescue to save not only the wolves and moose, but the entire island ecosystem.On Isle Royale, a unique national park more than fifty miles from the Michigan shore and about fifteen miles from Minnesota, a thrilling drama is unfolding between wolves and moose, the island’s ultimate predator and prey. For over sixty years, in what has been known as the longest study of predator and prey in the world, scientists have studied the wolves and moose of Isle Royale and the island’s ecology to observe and investigate wildlife populations. But due to illness and underlying factors, the population of wolves on the island has dropped while the number of moose has increased, putting the Isle Royale ecosystem in jeopardy.Now, for the first time ever, scientists are intervening. Join celebrated author Nancy Castaldo in this exciting journey to Isle Royale to document the genetic rescue experiment scientists there are embarking on. If they can successfully relocate twenty to thirty wolves from the mainland to Isle Royale, scientists can potentially restore the balance among wolves, moose, and trees of the island's ecosystem. Now the living laboratory experiment begins.

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As the world becomes more aware of the threats climate change, genetic modification, and deforestation has on the longevity of our natural resources, young readers must rally to preserve our food and world. Readers of Michael Pollen will thoroughly enjoy the depth and fascinatingly intricate social economy of seeds.

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Discover the inspiring story of Ada Lovelace, one of the world's first computer scientists!In 1833, Ada Lovelace met mathematician Charles Babbage, inventor of calculating machines. She went on to devise a way of inputting data into Babbage's Analytical Machine, and in doing so became the first ever computer programmer. In this biography book for 7-11 year olds, learn all about Ada Lovelace's intriguing life, including her talent for languages and mathematics, and her fascination with science.Life Stories is a new biography series for kids from DK that goes beyond the basic facts to tell the true life stories of history's most interesting and inspiring people. Full-colour photographs and hand-drawn illustrations complement age-appropriate narrative text to create an engaging book children will enjoy reading. Definition boxes, information sidebars, inspiring quotes, and other nonfiction text features add depth, and a handy reference section at the back makes DK Life Stories the one biography series everyone will want to collect.

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Where does our food come from? Is farming different around the world? In this charmingly illustrated book, follow sustainable farming around the world to discover how farmers from Hawaii, to Sweden, the UK and beyond grow the fresh and tasty food we enjoy eating. Explore the seasonal workings of farms around the world, and how food can be grown using sustainable methods that focus on quality versus quantity to ensure an environmentally healthy future. The World That Feeds Us explores fascinating farms and farming techniques around the world, including: Global cacao production City farms, on rooftops and beyond Heirloom crops and heritage breeds Farmer's markets across the globe High tech machinery such as farmbots A glossary defines key sustainable farming terms. Through this colourful and global look at farming, children will learn how farmers, and us, can make choices to protect the planet, whilst still enjoying delicious and nutritious food.

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