Showing titles in Biology

Synthetic biology promises to reveal how life is created and how it can be re-created, enabling scientists to rewrite the rules of our reality. It could help us, for example, heal without prescription medications, grow meat without harvesting animals, or confront our looming climate catastrophe. Synthetic biology will determine the ways in which we conceive future generations and how we define family, how we identify disease and treat aging, where we make our homes, and how we nourish ourselves.

What causes a child to grow up gay or straight? In this book, neuroscientist Simon LeVay summarizes a wealth of scientific evidence that points to one inescapable conclusion: Sexual orientation results primarily from an interaction between genes, sex hormones, and the cells of the developing body and brain. LeVay helped create this field in 1991 with a much-publicized study in Science, where he reported on a difference in the brain structure between gay and straight men. Since then, an entire scientific discipline has sprung up around the quest for a biological explanation of sexual orientation. In this book, LeVay provides a clear explanation of where the science stands today, taking the reader on a whirlwind tour of laboratories that specialize in genetics, endocrinology, neuroscience, cognitive psychology, evolutionary psychology, and family demographics. He describes, for instance, how researchers have manipulated the sex hormone levels of animals during development, causing them to mate preferentially with animals of their own gender. LeVay also reports on the prevalence of homosexual behavior among wild animals, ranging from Graylag geese to the Bonobo chimpanzee.

We all know that we depend on elements for survival - from oxygen in the air we breathe to carbon in the molecular structures of all living things. But we seldom appreciate how, say, phosphorus holds our DNA together or how potassium powers our optic nerves enabling us to see.

An award-winning physician and scientist makes the game-changing case that genetic females are stronger than males at every stage of life. Here are some facts: Women live longer than men. They have stronger immune systems. They're better at fighting cancer and surviving famine and even see the world in a wider variety of colours. They are simply stronger than men at every stage of life. Why is this? And why are we taught the opposite?

This pathbreaking book explores how life can begin, taking us from cosmic clouds of stardust, to volcanoes on Earth, to the modern chemistry laboratory. Seeking to understand life's connection to the stars, David Deamer introduces astrobiology, a new scientific discipline that studies the origin and evolution of life on Earth and relates it to the birth and death of stars, planet formation, interfaces between minerals, water, and atmosphere, and the physics and chemistry of carbon compounds.

Did NASA really spend millions creating a pen that would write in space? Is chocolate poisonous to dogs? Does stress cause gray hair? These questions are a sample of the urban lore investigated in this audiobook, Fact or Fiction: Science Tackles 58 Popular Myths. Drawing from Scientific American’s “Fact or Fiction” and “Strange But True” columns, we’ve selected 58 of the most surprising, fascinating, useful, and just plain wacky topics confronted by our writers over the years.

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.

Emmy Award - winning filmmaker, writer, and naturalist Joe Hutto has done it again. Touching the Wild is the enchanting story about one man who has lived with a herd of mule deer in the Wind River mountains of Wyoming for almost seven years. Why, you may ask, would a person choose to do such a thing? His response: how could you not? For Joe Hutto, close proximity to wild things is irresistible. In Illumination in the Flatwoods he unveiled the secret lives of the wild turkey to great critical acclaim.

We inherit mechanisms for survival from our primeval past - none so obviously as those involved in reproduction. The hormone testosterone underlies the organization of activation of masculinity: It changes the body and brain to make a male. It is involved not only in sexuality but in driving aggression, competitiveness, risk-taking - all elements that were needed for successful survival and reproduction in the past. But these ancient systems are carried forward into a modern world.

Antibiotics are powerful drugs that can prevent and treat infections, but they are becoming less effective as a result of drug resistance. Resistance develops because the bacteria that antibiotics target can evolve ways to defend themselves against these drugs. When antibiotics fail, there is very little else to prevent an infection from spreading. Unnecessary use of antibiotics in both humans and animals accelerates the evolution of drug-resistant bacteria, with potentially catastrophic personal and global consequences.

Though you may not be able to see them with the naked eye, parasites inhabit our everyday lives. From headlice to bird droppings, litterboxes to unfiltered water, you have brushed up against the most common way of life on our planet. In this unique book, John Janovy Jr., one of the world's preeminent experts on parasites, reveals what can humans learn from the most reviled yet misunderstood animals on Earth: lice, tapeworms, flukes, and maggots that can eat a lizard from the inside, and how these lessons help us negotiate our own complicated world.

Imagine a ferocious marine hunter up to 20 metres long, weighing twice as much as a humpback whale and ten times more than Tyrannosaurus rex. With jaws that open three metres wide, crammed with 276 serrated fangs, it can bite down with the greatest force of any animal that has ever lived. This is the Megalodon, and it once existed 3 million years ago. Acclaimed conservationist, palaeontologist and explorer Tim Flannery and his scientist daughter Emma tell the story of this enthralling great shark for the first time - what we know about where and how it lived, bred, hunted and died.

Could humans unknowingly be a part of a larger superorganism—one with its own motivations and goals, one that is alive, and conscious, and has the power to shape the future of our species? This is the fascinating theory from author and futurist Byron Reese, who calls this human superorganism “Agora.” In We Are Agora, Reese starts by asking the question, “What is life and how did it form?” From there, he looks at how multicellular life came about, how consciousness emerged, and how other superorganisms in nature have formed.

For most of us, the only thing we know about flies is that they're annoying, and our usual reaction is to try to kill them. In Super Fly, the myth-busting biologist Jonathan Balcombe shows the order Diptera in all of its diversity, illustrating the essential role that flies play in every ecosystem in the world as pollinators, waste-disposers, predators, and food source; and how flies continue to reshape our understanding of evolution.

An eye-opening look into why our bodies work - or don’t - the way they do. From blurry vision to crooked teeth, ACLs (anterior cruciate ligaments) that tear at alarming rates and spines that seem to spend a lifetime falling apart, it’s surprising that human beings have beaten the odds as a species. After all, we’re the only survivors on our branch of the tree of life. In this funny, wide-ranging and often surprising book, biologist Alex Bezzerides tells us from where we inherited our adaptable, achy, brilliant bodies in the process of evolution.

Topics explored in this dialogue include: how you can address the greatest challenge of our times, the role of the arts in deep ecology, how the shift from linear thinking to systems thinking in the sciences affects us now and in the future, understanding the complexity of living systems and life itself, why creativity is the driving force of evolution, what religion and deep ecology have in common, what's really behind the information age, and the mathematics of complexity.

In this Very Short Introduction, Paul B. Wignall looks at the causes and nature of extinctions, past and present, and the factors that can make a species vulnerable. Summarizing what we know about all of the major and minor extinction events, he examines some of the greatest debates in modern science, such as the relative role of climate and humans in the death of the Pleistocene megafauna, including mammoths and giant ground sloths, and the roles that global warming, ocean acidification, and deforestation are playing in present-day extinctions.

Like Solomon with his magic ring, famed Austrian ethologist Konrad Lorenz was a gifted student of the animal world. King Solomon's Ring, which brought him worldwide recognition, is a delightful collection of observations and insights into the lives of our furry and feathered friends, from our familiar furry companions to water shrews and jackdaws. A must listen for any animal lover.

For much of recorded history, people considered the heart to be the most important organ in the body. In cultures around the world, the heart—not the brain—was believed to be the location of intelligence, memory, emotion, and the soul. Over time, views on the purpose of the heart have transformed. Modern medicine and science dismissed what was once the king of the organs as a mere blood pump subservient to the brain, yet the heart remains a potent symbol of love and health and an important part of our cultural iconography.

On the Origin of Species (1859) by Charles Darwin is a work of scientific literature considered to be the foundation of evolutionary biology. The book introduced the theory that populations evolve over the course of generations through a process of natural selection, backed by a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. The evidence was gathered on the Beagle expedition in the 1830s and the author’s subsequent findings from research, correspondence, and experimentation.