検索キーワード： 生物学

The question of how and why organisms age has teased scientists for centuries. There are myriad competing theories, from the idea that ageing is a simple wear and tear process, like the rusting of a car, to the belief that ageing and death are genetically programmed and controlled. In fact, there is no clearly defined limit to life and no single, predictable program playing itself out: different things are happening within and between tissues, and each system or organ accumulates damage at its own pace, according to the kind of insults imposed on it by daily living. 

Charles Darwin’s theories, first published more than 150 years ago, still set the paradigm of how we understand the evolution of life--but scientific advances of recent decades have radically altered that. Now two pioneering scientists draw on their years of experience in paleontology, biology, chemistry, and astrobiology to deliver an eye-opening narrative using a generation’s worth of insights culled from new research.

In the late 1600s, a distinguished English polymath, Robert Hooke, and an eccentric Dutch cloth merchant, Antonie van Leeuwenhoek, look down their handmade microscopes. What they see introduces a radical concept that sweeps through biology and medicine, touching virtually every aspect of the two sciences and altering both forever. It is the fact that complex living organisms are assemblages of tiny self-contained, self-regulating units. Our organs, our physiology, our selves—hearts, blood, brains—are built from these compartments. Hooke christens them 'cells'.

In the mid-1970s, scientists began using DNA sequences to reexamine the history of all life. Perhaps the most startling discovery to come out of this new field is horizontal gene transfer (HGT), or the movement of genes across species lines. For instance, we now know that roughly eight percent of the human genome arrived not through traditional inheritance from directly ancestral forms, but sideways by viral infection - a type of HGT. In The Tangled Tree David Quammen chronicles these discoveries through the lives of the researchers who made them.

Humans have kept honey bees in hives for millennia, yet only in recent decades have biologists begun to investigate how these industrious insects live in the wild. The Lives of Bees is Thomas Seeley’s captivating story of what scientists are learning about the behavior, social life, and survival strategies of honey bees living outside the beekeeper’s hive - and how wild honey bees may hold the key to reversing the alarming die-off of the planet’s managed honey bee populations.

Biology is undergoing a quiet but profound transformation. Several aspects of the standard picture of how life works—the idea of the genome as a blueprint, of genes as instructions for building an organism, of proteins as precisely tailored molecular machines, of cells as entities with fixed identities, and more—have been exposed as incomplete, misleading, or wrong. In How Life Works, Philip Ball explores the new biology, revealing life to be a far richer, more ingenious affair than we had guessed.

Carl Zimmer investigates one of the biggest questions of all: what is life? The answer seems obvious until you try to seriously answer it. Is the apple sitting on your kitchen counter alive, or is only the apple tree it came from deserving of the word? If we can’t answer that question here on Earth, how will we know when and if we discover alien life on other worlds? The question hangs over some of society’s most charged conflicts - whether a fertilised egg is a living person, for example, and when we ought to declare a person legally dead. 

In this wide-ranging and accessible new book, biologist-turned-perfumer Elise Vernon Pearlstine turns our human-centered perception of fragrance on its head and investigates plants' evolutionary reasons for creating aromatic molecules. Delving into themes of spirituality, wealth, power, addiction, royalty, fantasy, and more, Pearlstine uncovers the natural history of aromatic substances and their intersection with human culture and civilization.

If you think sexism thrives only on Wall Street or Hollywood, you haven’t visited a lab, a science department, a research foundation, or a biotech firm. Rita Colwell is one of the top scientists in America: the groundbreaking microbiologist who discovered how cholera survives between epidemics and the former head of the National Science Foundation. But when she first applied for a graduate fellowship in bacteriology, she was told, “We don’t waste fellowships on women.” A lack of support from some male superiors would lead her to change her area of study six times.

The existence of free will - our ability to choose between one course of action and another, to determine our own destiny - is a foundation stone of Western society, dictating our notions of fairness and justice, punishment and reward, our very identity as individuals and humans. But as world-renowned scientist Robert Sapolsky shows, there is not a shred of evidence to suggest that free will exists, even while everything in our biology leads us to believe that it does.

Have you ever wondered what your dogs are thinking? What they're feeling? Now you can finally know! The answers will surprise and delight you as scientist and dog owner Alexandra Horowitz explains how our four-legged friends perceive their daily worlds, each other, and that other quirky animal, the human.

Since the dawn of recorded history, humans have felt a kinship with the sleek and beautiful dolphin, an animal whose playfulness, sociability, and intelligence seem like an aquatic mirror of mankind. In recent decades, we have learned that dolphins recognize themselves in reflections, count, grieve, adorn themselves, feel despondent, rescue one another (and humans), deduce, infer, seduce, form cliques, throw tantrums, and call themselves by name. 

Diagnosed with autism spectrum disorder at the age of eight, Dr Camilla Pang struggled to understand the world around her. Desperate for a solution, Camilla asked her mother if there was an instruction manual for humans that she could consult. But, without the blueprint to life she was hoping for, Camilla began to create her own. Now armed with a PhD in biochemistry, Camilla dismantles our obscure social customs and identifies what it really means to be human using her unique expertise and a language she knows best: science. 

Australopithecines, dinosaurs, trilobites - such fossils conjure up images of lost worlds filled with vanished organisms. But in the full history of life, ancient animals, even the trilobites, form only the half-billion-year tip of a nearly four-billion-year iceberg. Andrew Knoll explores the deep history of life from its origins on a young planet to the incredible Cambrian explosion, presenting a compelling new explanation for the emergence of biological novelty.

The European eel, Anguilla anguilla, is one of the strangest creatures nature ever created. Remarkably little is known about the eel, even today. What we do know is that it’s born as a tiny willow-leaf-shaped larva in the Sargasso Sea, travels on the ocean currents toward the coasts of Europe - a journey of about 4,000 miles that takes at least two years. Upon arrival, it transforms itself into a glass eel and then into a yellow eel before it wanders up into fresh water. 

Written by professor of cognitive neuroscience at UCL Sophie Scott and composed of 10 mind-blowing yet accessible essays, The Brain guides you through the astounding complexities of the organ that makes you, you. From diving into the networks of neurons that are vital to our functioning, to the way our brains differ from one another and how neuroscience is shaping up for the future, this book is a guide to our most powerful and awe-inspiring body part.

When we think of electricity, we likely imagine the energy humming inside our home appliances or lighting up our electronic devices - or perhaps we envision the lightning-streaked clouds of a stormy sky. But electricity is more than an external source of power, heat, or illumination. Life at its essence is nothing if not electrical.

Insects, fish, reptiles, birds, amphibians, and mammals make up the six main animal groups. But did you know that each of these groups has a different life cycle? Or that each group has specific stages of growth? This fascinating book investigates the life cycle of each animal group.

Biologist Rob Dunn reveals the crucial influence that other species have upon our health, our well-being, and our world in The Wild Life of Our Bodies - a tour through the hidden truths of nature and codependence. Dunn illuminates the nuanced relationships that exist between homo sapiens and other species, relationships that underpin humanity's ability to thrive and prosper in every circumstance. Fans of Michael Pollan's The Omnivore's Dilemma will be enthralled by Dunn's powerful, lucid exploration of the role that humankind plays within the greater web of life on Earth.

In September 2016, a woman in Nevada became the first known case in the US of a person who died of an infection resistant to every antibiotic available. Her death is the worst nightmare of infectious disease doctors and public health professionals. While bacteria live within us and are essential for our health, some strains can kill us. As bacteria continue to mutate, becoming increasingly resistant to known antibiotics, we are likely to face a public health crisis of unimaginable proportions.