Download E-books Sex on Earth: A Journey Through Nature's Most Intimate Moments PDF

One thousand million years in the past, an incredible revolution happened on Earth--sex occurred for the 1st time. From that second on, the area turned ever extra colourful and peculiar, ringing with difficult songs and dances, epic battles, and rallying cries because the wants of ladies and men collided, iteration after iteration, in an unbroken chain of intercourse going again to the sunrise of advanced lifestyles in the world. intercourse is in every single place. straight away warring hordes are locking horns, preening feathers, rampaging lustfully around the savanna, wondering the constancy of those they love.

Writing in a brilliantly enticing sort, biologist Jules Howard leads readers on a guided travel of the how and why of intercourse in the world in all its variety. From sperm wars to cuckoldry, hermaphrodites, virgin births, “exploding” penises, and mallards' “booby-trapped” vaginas, Sex on the earth explores and celebrates the wonders and peculiarities of animal reproduction.

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Download E-books Principles of Ecotoxicology PDF

Environmental pollutants is brought on by quite a lot of chemical substances published because of human actions. This ebook goals to spot significant sessions of pollution and their environmental destiny, prior to happening to contemplate the results that they could have on person organisms and ecosystems. The publication progresses from the molecular foundation of pollutant toxicity to consequent results at better degrees of association - mobile, entire organism, inhabitants, group and ecosystem.; The booklet defines ecotoxicology because the learn of the dangerous results of chemical compounds upon ecosystems. it's an interdisciplinary topic which represents a synthesis of components from the disciplines of chemistry, biochemistry, toxicology, body structure, inhabitants ecology and inhabitants genetics. unlike "classical" toxicology, the final word predicament is for the results on the point of populations and consequent results on the point of populations.

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Download E-books Introduction to Modern Optics (Dover Books on Physics) PDF

By Grant R. Fowles

This incisive textual content offers a easy undergraduate-level direction in glossy optics for college students in physics, know-how and engineering. the 1st half the publication offers with classical actual optics; the second one mostly with the quantum nature of sunshine. Chapters 1 and a pair of deal with the propagation of sunshine waves, together with the thoughts of part and workforce velocities, and the vectorial nature of sunshine. bankruptcy three applies the thoughts of partial coherence and coherence size to the learn of interference, and bankruptcy four takes up multiple-beam interference and contains Fabry-Perot interferometry and multilayer-film conception. Diffraction and holography are the themes of bankruptcy five, and the propagation of sunshine in fabric media (including crystal and nonlinear optics) are imperative to bankruptcy 6. Chapters 7 and eight introduce the quantum conception of sunshine and common optical spectra, and bankruptcy nine explores the speculation of sunshine amplification and lasers. bankruptcy 10 in brief outlines ray optics as a way to introduce scholars to the matrix approach for treating optical structures and to use the ray matrix to the examine of laser resonators.
Many functions of the laser to the examine of optics are built-in in the course of the textual content. the writer assumes scholars have had an intermediate direction in electrical energy and magnetism and a few complicated arithmetic past calculus. For lecture room use, a listing of difficulties is integrated on the finish of every bankruptcy, with chosen solutions on the finish of the book.

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Download E-books The Reason Why: The Miracle of Life on Earth PDF

By John Gribbin

Does one planet actually matter one of the immensity of the Cosmos? John Gribbin is right here to cajole us that it does. during this ground-breaking and provocative new ebook Gribbin argues that we owe our lifestyles to the influence of a 'supercomet' with Venus six hundred million years in the past. yet this can be in basic terms a part of the tale, only one of the astronomical and geophysical the reason why the Earth is exact. For the 1st time, he makes the hyperlink among the complete sequence of cosmic occasions that experience affected the Earth and given upward push to our clever civilization - a civilization, Gribbin argues, that's distinct inside of our Milky means Galaxy. no matter if different Earths are universal, and lifestyles itself could be universal, the type of clever, technological civilization that has emerged in the world happens in basic terms the following. If humankind can continue to exist the current environmental crises, the total of the galaxy may perhaps develop into our domestic. And if no longer, our death will be an occasion of actually common importance.

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Download E-books Artificial Intelligence and Molecular Biology (American Association for Artificial Intelligence) PDF

The huge, immense quantity of knowledge generated via the Human Genome undertaking and different large-scale organic examine has created a wealthy and difficult area for study in man made intelligence. those unique contributions supply a present sampling of AI methods to difficulties of organic value; they're the 1st to regard the computational wishes of the biology neighborhood hand-in-hand with applicable advances in synthetic intelligence. targeting novel applied sciences and ways, instead of on confirmed purposes, they conceal genetic series research, protein constitution illustration and prediction, automatic info research aids, and simulation of organic platforms. a short introductory primer on molecular biology and Al supplies computing device scientists enough history to appreciate a lot of the biology mentioned within the book.Lawrence Hunter is Director of the laptop studying undertaking on the nationwide Library of medication, nationwide Institutes of Health.

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Download E-books Ecology of Lianas PDF

By Stefan Schnitzer

Lianas are woody vines that have been the point of interest of excessive research by means of early ecologists, equivalent to Darwin, who dedicated a whole e-book to the common background of mountaineering plants.  over the last region century, there was a resurgence within the research of lianas, and liana are back famous as very important elements of many forests, relatively within the tropics.  The expanding quantity of analysis on lianas has led to a essentially deeper realizing of liana ecology, evolution, and life-history, in addition to the myriad roles lianas play in wooded area dynamics and functioning. 
This booklet offers perception into the ecology and evolution of lianas, their anatomy, body structure, and traditional background, their worldwide abundance and distribution, and their wide-ranging results at the myriad organisms that inhabit tropical and temperate forests.

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Download E-books Life's Engines: How Microbes Made Earth Habitable (Science Essentials) PDF

For nearly 4 billion years, microbes had the primordial oceans all to themselves. The stewards of Earth, those organisms reworked the chemistry of our planet to make it liveable for vegetation, animals, and us. Life's Engines takes readers deep into the microscopic international to discover how those incredible creatures made lifestyles on the earth possible--and how human existence this present day may stop to exist with no them.

Paul Falkowski appears to be like "under the hood" of microbes to discover the engines of lifestyles, the particular operating components that do the biochemical heavy lifting for each dwelling organism in the world. With perception and humor, he explains how those miniature engines are built--and how they've been appropriated through and assembled like Lego units inside of each creature that walks, swims, or flies. Falkowski exhibits how evolution works to keep up this center equipment of existence, and the way we and different animals are veritable conglomerations of microbes.

A vibrantly exciting e-book concerning the microbes that help our very existence, Life's Engines will motivate ask yourself approximately those elegantly advanced nanomachines that experience pushed existence due to the fact that its foundation. It additionally matters a well timed caution concerning the risks of tinkering with that equipment to make it extra "efficient" at assembly the ever-growing calls for of people within the coming century.

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Download E-books How to Build a Dinosaur: Extinction Doesn't Have to Be Forever PDF

By Jack Horner, James Gorman

A world-renowned paleontologist takes readers all around the globe to bare a brand new technological know-how that trumps technology fiction: how people can re-create a dinosaur.

In videos, in novels, in comedian strips, and on tv, we’ve all noticeable dinosaurs—or at the least somebody’s proficient wager of what they might appear like. yet what if it have been attainable to construct, or develop, a true dinosaur, with out discovering old DNA? Jack Horner, the scientist who prompt Steven Spielberg on Jurassic Park, and a pioneer in bringing paleontology into the twenty-first century, groups up with the editor of The long island Times,’s technology occasions part to bare precisely what’s in store.

within the Nineteen Eighties, Horner begun utilizing CAT scans to seem inside of fossilized dinosaur eggs, and he and his colleagues were delving deeper ever because. At North Carolina nation collage, Mary Schweitzer has extracted fossil molecules—proteins that survived sixty eight million years—from a Tyrannosaurus rex fossil excavated by way of Horner. those proteins exhibit that T. rex and the fashionable chook are kissing cousins. At McGill college, Hans Larsson is manipulating a bird embryo to evoke the dinosaur inside: beginning by way of turning out to be a tail and finally prompting it to develop the forelimbs of a dinosaur. All of this is often occurring with out altering a unmarried gene.

This excellent study is resulting in discoveries and purposes so profound they’re frightening within the energy they confer on humanity. How to construct a Dinosaur is a journey of the recent rocky deserts and air-conditioned laboratories on the leading edge of this clinical revolution.

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Download E-books Polar Bears: A Complete Guide to Their Biology and Behavior PDF

By Andrew E. Derocher

The polar undergo, king of the Arctic, is without doubt one of the world’s such a lot recognizable animals. photos of the majestic beasts roaming around the ice cap, plunging into frigid waters, and fidgeting with hairy cubs have come to represent the wonder and grandeur of the Arctic. Andrew E. Derocher and Wayne Lynch have spent many years following the bears, and this publication bargains the main complete and readable evaluate in their biology, ecology, habit, and conservation.

With gripping photos by means of Lynch, a preeminent flora and fauna photographer, and the non-public tales of Derocher, this ebook is as wonderful to examine because it is interesting to learn. It weaves jointly their notable studies with the most recent examine to inform the superb tale of those Arctic predators, tracing the animals again to their evolutionary roots and looking out forward to the way forward for polar bears on a warming planet Earth.

Through informative and interesting language, Derocher rigorously explains the ocean ice atmosphere that's necessary to the survival of polar bears. He addresses the specter of worldwide warming to the Arctic―home to polar bears for tens of millions of years―and describes in striking aspect their feeding behavior, distribution, den ecology, and replica. Lynch’s brilliant images seize all this and extra as they chronicle the big variety of polar endure habit, from kinfolk rituals to ferocious predatory practices.

Captivating, exact, and encouraging, Polar Bears belongs within the arms of all who love the wild.

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Download E-books Plant Ecology PDF

This textbook covers Plant Ecology from the molecular to the worldwide point. It covers the subsequent parts in remarkable breadth and depth:

- Molecular ecophysiology (stress body structure: gentle, temperature, oxygen deficiency, drought, salt, heavy metals, xenobiotica and biotic pressure factors)
- Autecology (whole plant ecology: thermal stability, water, nutrient, carbon relations)
- environment ecology (plants as a part of ecosystems, aspect cycles, biodiversity)
- Synecology (development of crops in time and house, interactions among crops and the abiotic and biotic environment)
- international features of plant ecology (global swap, international biogeochemical cycles, land use, overseas conventions, socio-economic interactions)

The publication is thoroughly established and good written: advanced matters are elegantly offered and simply comprehensible. It includes greater than 500 photos and drawings, quite often in color, illustrating the attention-grabbing subject.
The e-book is essentially geared toward graduate scholars of biology yet can also be of curiosity to post-graduate scholars and researchers in botany, geosciences and panorama ecology. extra, it presents a legitimate foundation for these facing agriculture, forestry, land use, and panorama management.

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