Mostrando títulos en Evolución y Genética

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?

This Very Short Introduction uncovers the history of our understanding of sexual selection, from Darwin's key insights to the modern day. Considering the investment animals place on reproduction, variation in mating systems, sexual conflict, and the origin of sexual dimorphism, authors Marlene Zuk and Leigh Simmons discuss questions such as whether females can really choose between males on aesthetic grounds and how sexual conflict is resolved in different species.

Few people know much about stem cell research beyond the ethical questions raised by using embryos. But in the last decade, stem cell research has made huge advances toward eliminating some of our most intractable diseases. Now this sweeping and accessible book introduces us to this cutting-edge science, which will revolutionize medicine and change the way we think about and treat disease.

Brian and Deborah Charlesworth provide a clear and concise summary of the process of evolution by natural selection, and how natural selection gives rise to adaptations and eventually, over many generations, to new species. They introduce the central concepts of the field of evolutionary biology, as they have developed since Darwin and Wallace on the subject, over 140 years ago, and discuss some of the remaining questions regarding processes.

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 award-winning journalist Lisa Margonelli investigates the environmental and economic impact termites inflict on human societies in this fascinating examination of one of nature's most misunderstood insects.

In Wild Sex, Dr. Carin Bondar takes listeners on an enthralling tour of the animal kingdom as she explores the diverse world of sex in the wild. She looks at the evolution of sexual organs (and how they've shaped social hierarchies), tactics of seduction, and the mechanics of sex. She investigates a wide range of topics, from whether animals experience pleasure from sex to what happens when females hold the reproductive power.

Over a century after Darwin published the Origin of Species, Darwinian theory is in a "vibrantly healthy state," writes Stephen Jay Gould, its most engaging and illuminating exponent. Exploring the "peculiar and mysterious particulars of nature," Gould introduces the listener to some of the many and wonderful manifestations of evolutionary biology.

From the author of Seed of Israel: DNA Guide to Tracing Your Jewish Ancestry comes this great dive into the history of Ashkenazi Jews. While controversial debates spark disagreements on the crystallization of this Jewish Diaspora, modern genetic studies and personal DNA samples finally conclude the Levantine Middle Eastern and Mediterranean roots of Ashkenazi ancestry: Judean people from the Holy Land that journeyed across the Mediterranean to the bottleneck of Europe.

But the quest to unravel life's genesis is not just a story of big ideas. It is also a compelling human story, rich in personalities, conflicts, and surprising twists and turns. Along the way the journey takes in some of the greatest discoveries in modern biology, from evolution and cells to DNA and life's family tree. It is also a search whose end may finally be in sight. In The Genesis Quest, Michael Marshall shows how the quest to understand life's beginning is also a journey to discover the true nature of life, and by extension our place in the universe.

In Cracking the Aging Code, theoretical biologist Josh Mitteldorf and award-winning writer and ecological philosopher Dorion Sagan reveal that evolution and aging are even more complex and breathtaking than we originally thought. Using meticulous multidisciplinary science as well as reviewing the history of our understanding about evolution, this book makes the case that aging is not something that "just happens", nor is it the result of wear and tear or a genetic inevitability.

Robert Ardrey guides the listener on a remarkable journey of discovery through 20 million years of man's prehistory: from the days when his ancestors first emerged from the forests of Africa during the benevolent warmth and rains of the Miocene, through the unremitting drought of the Pliocene and the dramatic climactic shifts of the Pleistocene, down to those few thousand years past when man emerged at last onto the stage of recorded history as a fully evolved hunting animal.

It may be a wonderful world, but as Dan Riskin explains, it's also a dangerous, disturbing, and disgusting one. At every turn, it seems, living things are trying to eat us, poison us, use our bodies as their homes, or have us spread their eggs. In Mother Nature Is Trying to Kill You, Riskin is our guide through the natural world at its most gloriously ruthless. Using the seven deadly sins as a road map, Riskin offers dozens of jaw-dropping examples that illuminate how brutal nature can truly be.

Today, with relatively easy access to our DNA ancestry, we have more data about ourselves and family history than previous generations could have imagined. In the 12 fascinating lessons of Identity in the Age of Ancestral DNA, Anita Foeman, PhD, professor of communication and media, and founder and primary investigator of the DNA Discussion Project at West Chester University, takes us behind the scenes to examine what really happens when individuals receive their personal DNA ancestry results.

Scientists often challenge conventional wisdom and spark debates that last for generations. But no scientist has fuelled more debate than Charles Darwin. To some he is the revolutionary 'father' of evolution. To others he is the perverse 'originator' of modern eugenics. In The Darwin Myth: The Life and Lies of Charles Darwin, author Benjamin Wiker brings these conflicting identities to light.

PROBLEM: Six in ten adults now live with at least one chronic disease, and poor diet can accelerate your biological age by up to seven years. Genes matter— but what you do with them matters even more. AGITATION: Cutting-edge studies (2023-2025) show that everyday choices switch on or silence more than 20 000 genes linked to longevity, immunity and metabolism. When the wrong nutrients disrupt your methylation cycle, harmful homocysteine rises, health declines and aging speeds up. SOLUTION: In Epigenetic Nutrition, clinical nutritionist Curro Clavero reveals science-backed protocols to ...

Tribalism is one of the most complex and ancient evolutionary forces; it gave us the capacity for cooperation and competition, and allowed us to navigate increasingly complex social landscapes. It is so powerful that it can predict our behavior even better than race, class, gender, or religion. But in our vast modern world, has this blessing become a curse? Our Tribal Future explores a central paradox of our species: how altruism, community, kindness, and genocide are all driven by the same core adaptation.

In November 2018, the world was shocked to learn that two babies had been born in China with DNA edited while they were embryos - as dramatic a development in genetics as the cloning of Dolly the sheep was in 1996. In this book, Hank Greely, a leading authority on law and genetics, tells the fascinating story of this human experiment and its consequences. Greely explains what Chinese scientist He Jiankui did, how he did it, and how the public and other scientists learned about and reacted to this unprecedented genetic intervention.

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.

What is the nature of the material world? How does it work? What is the universe and how was it formed? What is life? Where do we come from and how did we evolve? How and why do we think? What does it mean to be human? How do we know? There are many different versions of our creation story. This book tells the version according to modern science. It is a unique account, starting at the Big Bang and travelling right up to the emergence of humans as conscious intelligent beings, 13.8 billion years later.