Mostrando títulos en Evolución y Genética

The language of genes has become common parlance. We know they make your eyes blue, your hair curly or your nose straight. The media tells us that our genes control the risk of cancer, heart disease, alcoholism or Alzheimer's. The cost of DNA sequencing has plummeted from billions of pounds to a few hundred, and gene-based advances in medicine hold huge promise. So we've all heard of genes, but how do they actually work?

We spend roughly a third of our lives in bed, but for millions of us, not all of that time is spent sleeping. We strive for eight hours per night, only to lie awake thanks to stress, our ever-present devices, a new baby, or that 4pm coffee you thought you needed. As sleep scientist and recovering insomniac Merijn van de Laar shows, we’re hardly the first to experience this. When homo sapiens evolved hundreds of thousands of years ago, when saber-toothed tigers were their biggest nighttime worry, wakefulness served to protect one’s tribe at night.

Tim Flannery’s first major book since The Weather Makers charts the history of life on our planet. Here on Earth, which draws its points of departure from Darwin and Wallace, Lovelock and Dawkins, is an extraordinary exploration of evolution and sustainability. Our success as a species has had disastrous effects on many of the Earth’s ecosystems and could lead to our downfall. But equally, Flannery argues, we are now equipped as never before to explore our true relationship with the planet on which our biological, economic and cultural futures depend.

We've all asked ourselves the question. It's impossible to look up at the stars and NOT think about it: Are we alone in the universe? Books, movies, and television shows proliferate that attempt to answer this question and explore it. In Out There, Space.com senior writer Dr. Michael Wall treats that question as merely the beginning, touching off a wild ride of exploration into the final frontier. He considers, for instance, the myriad of questions that would arise once we do discover life beyond Earth (an eventuality which, top NASA officials told Wall, is only drawing closer).

James T. Costa takes listeners on a journey from Darwin's youth and travels on the HMS Beagle to Down House, his bustling home of 40 years. We accompany Darwin in his myriad pursuits against the backdrop of his enduring marriage, chronic illness, grief at the loss of three children, and joy in scientific revelation. At each chapter's end, Costa shows how we, too, can investigate the wonders of nature at work, with directions on how to re-create Darwin's experiments.

In The Invisible History of the Human Race, Christine Kenneally draws on cutting-edge research to reveal how both historical artifacts and DNA tell us where we come from and where we may be going. While some books explore our genetic inheritance and some popular television shows celebrate ancestry, this is the first book to explore how everything from DNA to emotions to names and the stories that form our lives are all part of our human legacy.

Jonathan Weiner, winner of the Pulitzer Prize for The Beak of the Finch, brings his brilliant reporting skills to the story of Seymour Benzer, the Brooklyn-born maverick scientist whose study of genetics and experiments with fruit fly genes has helped revolutionize or knowledge of the connections between DNA and behavior both animal and human.

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.

In the woodlands of sub-Saharan Africa, sometime deep in our species’ past, something strange happened: a bird called out, not to warn others of human presence, but to call attention to herself. Having found a beehive, that bird—a honeyguide—sought human aid to break in. The behavior can seem almost miraculous: How would a bird come to think that people could help her? Isn’t life simply bloodier than that? As Rob Dunn argues in The Call of the Honeyguide, it isn’t.

Upon completing his historic work on the Human Genome Project, J. Craig Venter declared that he would sequence the genetic code of all life on earth. Thus began a fifteen-year quest to collect DNA from the world's oldest and most abundant form of life: microbes. Boarding the Sorcerer II, a 100-foot sailboat turned research vessel, Venter traveled over 65,000 miles around the globe to sample ocean water and the microscopic life within. In The Voyage of Sorcerer II, Venter and writer David Ewing Duncan tell the remarkable story of these expeditions and of the momentous discoveries that ensued.

From the cup of coffee that jump-starts the day to dangerously addictive drugs, the recreational use of plants with psychoactive properties has a long history among humans. But, as with many things, it turns out that other animals got there first. From parrots to primates, consuming medicinal chemicals is an instinctive behavior that helps countless organisms fight infection and treat disease. But the similarities don't end there: Like us, many creatures also consume substances that have no apparent benefit...except for inducing intoxication.

The open ocean, far from the shore and miles above the seafloor, is a vast and formidable habitat that is home to the most abundant life on our planet, from giant squid and jellyfish to anglerfish with bioluminescent lures that draw prey into their toothy mouths. Into the Great Wide Ocean takes listeners inside the peculiar world of the seagoing scientists who are providing tantalizing new insights into how the animals of the open ocean solve the problems of their existence.

Since its formation nearly five billion years ago, our planet has been the sole living world in a vast and silent universe. Now, Earth's isolation is coming to an end. Over the past two decades, astronomers have discovered thousands of "exoplanets" orbiting other stars, including some that could be similar to our own world. Studying those distant planets for signs of life will be crucial to understanding life's intricate mysteries right here on Earth. In a firsthand account of this unfolding revolution, Lee Billings draws on interviews with top researchers.

Here is a revolutionary perspective on the relationship between religion and science that builds a bridge between people of all beliefs.

Helena Greenwood, a doctor with a Ph.D. in chemical pathology, was working in biotechnology when she was the victim of sexual assault. She survived and was scheduled to testify against her attacker until she was found brutally murdered in her garden. Everyone believed the killer was her past attacker; but there was not enough evidence to convict him, until ten years later when a local District Attorney working the "cold cases" used Helena's own DNA research to finally bring her killer to justice.

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.

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.

Actor and best-selling science writer Ben Miller takes listeners to the cutting edge of one of the greatest questions of all: Is there life beyond Earth?

The Origin of Humankind is Richard Leakey's personal view of the development of Homo sapiens. At the heart of his new picture of evolution is the introduction of a heretical notion: Once the first apes walked upright, the evolution of modern humans became possible and perhaps inevitable. From this one evolutionary step comes all the other evolutionary refinements and distinctions that set the human race apart from the apes.

Looked at objectively, beneath the superficial appearance of design, the human body, with its inefficiencies, vulnerabilities, and vestigial features, is best explained through the lens of evolution. Far from reflecting intelligent design, our anatomy and physiology reveal a history of incremental changes shaped by natural selection and constrained by pre-existing structures. These imperfections underscore the reality of evolution as a tinkering process, producing functional but far-from-perfect outcomes. In this light, the human body stands as a powerful testament to our evolutionary ...