Mostrando títulos en Evolución

Did you know women walk more, eat less, socialize more, meet more men, dance more, and flirt more when they're ovulating? Or that PMS may have evolved to get rid of boyfriends with unfit sperm? Behind the "fickle" differences in what women find sexy about men, or what they like to wear, there's a hidden adaptive intelligence shaped over eons. Rather than making women irrational - as the conventional and irredeemably sexist wisdom goes - the female hormonal cycle has been exquisitely fine-tuned to give women the advantages they needed to succeed in our ancestral environments, and perhaps also today.

Paleoanthropologist Silvana Condemi and science journalist François Savatier tell the Denisovans’ story in The Secret World of Denisovans. Leading us through the excavation of Denisova cave, the sequencing of the Denisovan genome, and recent research on Denisovan fossils, Condemi and Savatier uncover how the Denisovans migrated to Asia, who they interacted with along the way, and why traces of Denisovan DNA can be found in modern-day humans.

Nearly every depressed person is assured by doctors, well-meaning friends and family, the media, and ubiquitous advertisements that the underlying problem is a chemical imbalance. Such a simple defect should be fixable, yet despite all of the resources that have been devoted to finding a pharmacological solution, depression remains stubbornly widespread. Why are we losing this fight?

Horses have a story to tell - one of resilience, sociability, and intelligence and of partnership with human beings. In The Horse, journalist and equestrienne Wendy Williams brings that story brilliantly to life. Williams chronicles the 56-million-year journey of horses as she visits with experts around the world, exploring what our biological affinities and differences can tell us about the bond between horses and humans and what our longtime companions might think and feel.

Charles Darwin was just 22 when he went on his first voyage around the world in 1831. Darwin's father at first refused to allow his young son to go on the voyage. Fortunately, his father relented, and Darwin's journal is now considered by many to be the greatest scientific travel narrative ever written.

In Origin Story, medical historian Howard Markel recounts the two-year period (1858 to 1860) of Darwin's writing of On the Origin of Species through its spectacular success and controversy. Simultaneously, Markel delves into the mysterious health symptoms Darwin developed, combing the literature to emerge with a cogent diagnosis of a case that has long fascinated medical historians.

What is animal welfare? This concise and accessible guide is for anyone who is interested in animals and who has wondered how we can assess their welfare scientifically. It defines animal welfare as "health and animals having what they want", a definition that can be easily understood by scientists and non-scientists alike, expresses in simple words what underlies many existing definitions, and shows what evidence we need to collect to improve animal welfare in practice. Above all, it puts the animal's own point of view at the heart of an assessment of its welfare.

For millennia plant and animal species have received little sustained attention as subjects of Christian theology and ethics in their own right. Focused on the human dilemma of sin and redemptive grace, theology has considered the doctrine of creation to be mainly an overture to the main drama of human being`s relationship to God. What value does the natural world have within the framework of religious belief?

Without flowers, human beings would not exist. We are a floral species, dependent on flowers for food and our habitats, as well as using flowers for beauty, scent, and culturally important rituals. Looking to the future, flowers offer us lessons on resilience and creativity in the face of rapid environmental change. How Flowers Made Our World combines lyrical writing, sensual exploration, and scientific expertise to explore some of the most consequential life forms ever to have evolved, showing how our planet came to be and how it thrives today.

What is life? Humans have been asking this question for thousands of years. But as technology has advanced and our understanding of biology has deepened, the answer has evolved. For decades, scientists have been exploring the limits of nature by modifying and manipulating DNA, cells, and whole organisms to create new ones that could never have previously existed on their own.

In this lively, lucid book, science writer David Stipp ponders Darwinian puzzles about nine familiar creatures and things—bumblebees, dogs, sparrows, caffeine, earthworms, and sleep, among others—to show how rewarding it can be to look at nature in this deeper way. By revealing hidden depths of the ordinary, The Everyday Darwinist shows not only that fascinating intricacies lie just beneath the natural world's familiar surfaces, but also that noticing them lets us connect dots that in many cases we didn't realize existed. This is backyard biophilia at its most entertaining and enlightening.

This short book, only 8,000 finely crafted words, is destined to be one of the most cited and influential modern treatises on atheism and secular humanism. It focuses squarely on the inherent irrationality of religion, and reveals its utter irreconcilability with science. Offering several "reconciliation theories" to people of faith, it forces every reader to make a choice. Contents The Reason Revolution in historical context Questioning belief Reasons for skepticism Secular humanism as an alternative worldview Political implications of atheism The collapse of religion Hopeful predictions ...

The early history of Earth covers such vast stretches of time that years, centuries, and even millennia become virtually meaningless. Instead, paleontologists and scientists who study geochronology divide time into periods and eras. The current view of science is that Earth is around 4.6 billion years old, and the first four billion years of its development are known as the Precambrian period.

Sixty-six million years ago the dinosaurs were wiped from the face of the earth. Today a new generation of dinosaur hunters, armed with cutting-edge technology, is piecing together the complete story of how the dinosaurs created a hugely successful empire that lasted for around 150 million years.

For decades after the identification of the structure of DNA, scientists focused only on genes, the regions of the genome that contain codes for the production of proteins. Other regions that make up 98 percent of the human genome were dismissed as "junk," sequences that serve no purpose. But researchers have recently discovered variations and modulations in this junk DNA that are involved with a number of intractable diseases. Junk DNA can play vital and unanticipated roles in the control of gene expression, from fine-tuning individual genes to switching off entire chromosomes.

The latest and most bitterly contested battle in the culture war is the controversy over Darwin and intelligent design. But much of what you've heard about it is wrong. Jonathan Wells, a battle-hardened veteran with doctorates in biology and theology, sets the record straight.

Our Political Nature is the first book to reveal the hidden roots of our most deeply held moral values. It shows how political orientations across space and time arise from three clusters of measurable personality traits. These clusters entail opposing attitudes toward tribalism, inequality, and differing perceptions of human nature. Together, these traits are by far the most powerful cause of left-right voting, even leading people to regularly vote against their economic interests.

Darwin considered humans one part of the web of life, not the apex of a natural hierarchy. Yet today many maintain that we are the most intelligent, virtuous, successful species that ever lived. This flawed thinking enables us to exploit the earth towards our own exclusive ends, throwing us into a perilous planetary imbalance. But is this view and way of life inevitable? The Arrogant Ape shows that human exceptionalism is an ideology that relies more on human culture than our biology, more on delusion and faith than on evidence.

For generations, we've been taught that women and men differ in profound and important ways. Women are more sensitive and emotional, whereas men are more aggressive and sexual, because this or that region in the brains of women is smaller or larger than in men, or because they have more or less of this or that hormone. This story seems to provide us with a neat biological explanation for much of what we encounter in day-to-day life. But is it true? According to neuroscientist Daphna Joel, it's not.

You've probably seen it before: a human brain dramatically lit from the side, the camera circling it like a helicopter shot of Stonehenge, and a modulated baritone voice exalting the brain's elegant design in reverent tones... to which this book says: Pure nonsense.