The Ascent of Birds - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Ascent of Birds write by John Reilly. This book was released on 2018-04-16. The Ascent of Birds available in PDF, EPUB and Kindle. When and where did the ancestors of modern birds evolve? What enabled them to survive the meteoric impact that wiped out the dinosaurs? How did these early birds spread across the globe and give rise to the 10,600-plus species we recognise today ― from the largest ratites to the smallest hummingbirds? Based on the latest scientific discoveries and enriched by personal observations, The Ascent of Birds sets out to answer these fundamental questions. The Ascent of Birds is divided into self-contained chapters, or stories, that collectively encompass the evolution of modern birds from their origins in Gondwana, over 100 million years ago, to the present day. The stories are arranged in chronological order, from tinamous to tanagers, and describe the many dispersal and speciation events that underpin the world's 10,600-plus species. Although each chapter is spearheaded by a named bird and focuses on a specific evolutionary mechanism, the narrative will often explore the relevance of such events and processes to evolution in general. The book starts with The Tinamou’s Story, which explains the presence of flightless birds in South America, Africa, and Australasia, and dispels the cherished role of continental drift as an explanation for their biogeography. It also introduces the concept of neoteny, an evolutionary trick that enabled dinosaurs to become birds and humans to conquer the planet. The Vegavis's Story explores the evidence for a Cretaceous origin of modern birds and why they were able to survive the asteroid collision that saw the demise not only of dinosaurs but of up to three-quarters of all species. The Duck's Story switches to sex: why have so few species retained the ancestral copulatory organ? Or, put another way, why do most birds exhibit the paradoxical phenomenon of penis loss, despite all species requiring internal fertilisation? The Hoatzin's Story reveals unexpected oceanic rafting from Africa to South America: a stranger-than-fiction means of dispersal that is now thought to account for the presence of other South American vertebrates, including geckos and monkeys. The latest theories underpinning speciation are also explored. The Manakin’s Story, for example, reveals how South America’s extraordinarily rich avifauna has been shaped by past geological, oceanographic and climatic changes, while The Storm-Petrel’s Story examines how species can evolve from an ancestral population despite inhabiting the same geographical area. The thorny issue of what constitutes a species is discussed in The Albatross's Story, while The Penguin’s Story explores the effects of environment on phenotype ― in the case of the Emperor penguin, the harshest on the planet. Recent genomic advances have given scientists novel approaches to explore the distant past and have revealed many unexpected journeys, including the unique overland dispersal of an early suboscine from Asia to South America (The Sapayoa’s Story) and the blackbird's ancestral sweepstake dispersals across the Atlantic (The Thrush’s Story). Additional vignettes update more familiar concepts that encourage speciation: sexual selection (The Bird-of-Paradise's Story); extended phenotypes (The Bowerbird's Story); hybridisation (The Sparrow's Story); and 'great speciators' (The White-eye's Story). Finally, the book explores the raft of recent publications that help explain the evolution of cognitive skills (The Crow's Story); plumage colouration (The Starling's Story); and birdsong (The Finch's Story)
How Birds Evolve
How Birds Evolve - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook How Birds Evolve write by Douglas J. Futuyma. This book was released on 2024-10-29. How Birds Evolve available in PDF, EPUB and Kindle. "Why are male birds often so brightly colored? Why do some birds lay more eggs than others? Will bird species adapt to climate change? In How Birds Evolve, Douglas Futuyma invites readers into the amazing world of bird evolution to answer these and other questions. Futuyma's goal in this book is not to offer a comprehensive evolutionary history of birds, but to explore how the processes of evolution produced the distinctive features and behaviors we observe in birds today as well as their impressive diversity. Using one or two birds per chapters as a lens into broader questions, Futuyma explores how a bird's evolutionary history helps us understand the diversity of species and the bird tree of life and how natural selection explains most of the characteristics of birds from how populations adapt to sexual selection and birds' amazing social behavior. Futuyma concludes by discussing the future of birds, particularly patterns of extinction and whether they can adapt to a changing climate. Ultimately, Futuyman wants readers to see that evolutionary biology helps us to better understand birds, and that the reverse is also true: studies of birds have informed almost every aspect of evolutionary biology, from Darwin to today"--
And the Birds Appeared
And the Birds Appeared - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook And the Birds Appeared write by Julie Stewart Williams. This book was released on 1988-09-01. And the Birds Appeared available in PDF, EPUB and Kindle. Retells the traditional legend of how Maui, a boy with magical powers, made the birds appear on Hawaii.
Vesper Flights
Vesper Flights - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vesper Flights write by Helen Macdonald. This book was released on 2020-08-25. Vesper Flights available in PDF, EPUB and Kindle. The New York Times–bestselling author of H is for Hawk explores the human relationship to the natural world in this “dazzling” essay collection (Wall Street Journal). In Vesper Flights, Helen Macdonald brings together a collection of her best loved essays, along with new pieces on topics ranging from nostalgia for a vanishing countryside to the tribulations of farming ostriches to her own private vespers while trying to fall asleep. Meditating on notions of captivity and freedom, immigration and flight, Helen invites us into her most intimate experiences: observing the massive migration of songbirds from the top of the Empire State Building, watching tens of thousands of cranes in Hungary, seeking the last golden orioles in Suffolk’s poplar forests. She writes with heart-tugging clarity about wild boar, swifts, mushroom hunting, migraines, the strangeness of birds’ nests, and the unexpected guidance and comfort we find when watching wildlife.
Bird's Eye View
Bird's Eye View - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Bird's Eye View write by Elinor Florence. This book was released on 2014-10-08. Bird's Eye View available in PDF, EPUB and Kindle. A Toronto Star Bestseller! Rose, a Canadian intelligence officer in Britain in World War II, struggles with conflicting feelings about the war and a superior’s attention. Rose Jolliffe is an idealistic young woman living on a farm with her family in Saskatchewan. After Canada declares war against Germany in World War II, she joins the British Women’s Auxiliary Air Force as an aerial photographic interpreter. Working with intelligence officers at RAF Medmenham in England, Rose spies on the enemy from the sky, watching the war unfold through her magnifying glass. When her commanding officer, Gideon Fowler, sets his sights on Rose, both professionally and personally, her prospects look bright. But can he be trusted? As she becomes increasingly disillusioned by the destruction of war and Gideon’s affections, tragedy strikes, and Rose’s world falls apart. Rose struggles to rebuild her shattered life, and finds that victory ultimately lies within herself. Her path to maturity is a painful one, paralleled by the slow, agonizing progress of the war and Canada’s emergence from Britain’s shadow.
