Libros de ciencias, página 44 de 2691

Si con la publicación en 1971 de A la sombra del hombre Jane Goodall suscitó una oleada de asombro y conmoción, no menos resonancia alcanzó casi veinte años despues la aparición de A traves de una ventana (1989), obra en la que la primatologa da cuenta de las observaciones, incidentes y pautas de comportamiento que tanto ella como su equipo pudieron recopilar a lo largo de casi treinta años de labor con la comunidad de chimpances del Parque Nacional de Gombe Stream, en Tanzania. La obra, ya clasica, consolido definitivamente el cambio en los metodos de estudio relativos a los grandes primates, asi como la propia consideracion de la comunidad cientifica hacia esta especie con la que el ser humano tiene en comun el 99 por ciento de su ADN. La presente edicion incorpora todas las adiciones que hizo la autora para la definitiva de la obra en 2009, en las que deja constancia no solo de estos cambios, sino tambien del destino posterior de buena parte de los chimpances con los que compartio aquellos años.

Desde la Antigüedad, los estudiosos se han sentido intrigados por la belleza, colores y caprichosas formas simétricas de los cristales que forman parte de la naturaleza. En forma de minerales son esp

F. David Peat; John P. Briggs

Up to fifty percent of the world's flower species could be are threatened with extinction. Each year, numerous flowers disappear from the face of the Earth without ever being documented. Indeed, many of these natural beauties remain as yet unknown to humankind. Photographer Richard Fischer can be regarded as the ambassador for flowers. For many years, he has staged graceful and endangered floral specimens in his photo studio, capturing the uniqueness and transience of each flower. In collaboration with the world's leading botanical gardens, his strikingly original images provide the flowers with an aesthetic framework in which their power of expression and majesty remain intact. Fischer's precise, yet delicate floral compositions record the unique color, form, and texture of each flower, while signaling to the extraordinary beauty, diversity, and fragility of the natural world. Fischer's inimitable flower photographs have bestowed him with exhibitions around the world: In Paris, London and Tokyo, at the Palais des Nations in Geneva, and the renowned China Academy of Art in Hangzhou. Richard Fischer prints are much sought after collector's items in the art photography market and calendars of his flower images appear annually. Now, for the first time, Richard Fischer brings together his best pictures spanning 15 years in one flower photography book, showcasing his artwork and little-known floral exotica. Throughout the volume, the photographs are accompanied by informative and captivating texts, leading the reader through an unknown and dwindling world of flowers.

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Drawing on startling new evidence from the mapping of the genome, an explosive new account of the genetic basis of race and its role in the human storyFewer ideas have been more toxic or harmful than the idea of the biological reality of race, and with it the idea that humans of different races are biologically different from one another. For this understandable reason, the idea has been banished from polite academic conversation. Arguing that race is more than just a social construct can get a scholar run out of town, or at least off campus, on a rail. Human evolution, the consensus view insists, ended in prehistory.Inconveniently, as Nicholas Wade argues in A Troublesome Inheritance, the consensus view cannot be right. And in fact, we know that populations have changed in the past few thousand yearsto be lactose tolerant, for example, and to survive at high altitudes. Race is not a bright-line distinction; by definition it means that the more human populations are kept apart, the more they evolve their own distinct traits under the selective pressure known as Darwinian evolution. For many thousands of years, most human populations stayed where they were and grew distinct, not just in outward appearance but in deeper senses as well.

Els nostres cervells són les màquines més complexes conegudes per la humanitat, però tenen un taló d'Aquil·les: les mateixes molècules que ens permeten existir també poden sabotejar les nostres ments

Internationally renowned theoretical physicist and bestselling author Lawrence Krauss offers provocative revelatory answers to the biggest philosophical questions Where did our universe come from Why does anything exist And how is it all going to end Why is there something rather than nothing is the question atheists and scientists are always asked and until now there has not been a satisfying scientific answer Today exciting scientific advances provide new insight into this cosmological mystery not only cansomething arise from nothing but something willalwaysarise from nothing A mind bending trip back to the beginning of the beginning A Universe from Nothingauthoritatively presents the most recent evidence that explains how our universe evolved and the implications for how it s going to end It will provoke challenge and delight readers to look at the most basic underpinnings of existence in a whole new way In the words of Richard Dawkins this could potentially be the most important scientific book since Darwin s On the Origin of Species

La emocionante aventura de las aves migratorias y lo que esta revela de nuestro presente y de nuestro futuro. «Un apasionante viaje junto a estos nómadas alados y las personas que los estudian. Un es

Pere Estupinyà vuelve a demostrar que la ciencia, bien explicada, no solo resulta interesantísima, sino que es la herramienta fundamental para mejorar el mundo y nuestra vida. Este libro es una invit