Resultados para "Fire" en Ciencias biológicas

Ever since Darwin and The Descent of Man, the existence of humans has been attributed to our intelligence and adaptability. But in Catching Fire, renowned primatologist Richard Wrangham presents a startling alternative: our evolutionary success is the result of cooking. In a groundbreaking theory of our origins, Wrangham shows that the shift from raw to cooked foods was the key factor in human evolution.

Why do organisms grow old and die? What are the theories of aging? Does the Free Radical Theory of Aging still stack up? How do cells decide when to divide, differentiate or die? What factors accelerate the aging process? This essay takes a look at these issues and would thus be useful to students who want to know more about the processes that control cell death. The essay also documents the more extreme measures that some people have taken in the pursuit of eternal youth.

Norman MacLean spent the last 14 years of his life determined to sift through grief and controversy in search of the truth behind the Mann Gulch tragedy, one of the worst disasters in the history of the Forest Service. Young Men and Fire is the culmination of his investigations. It is a story about honor, death, compassion, and the human spirit.

More than half a billion years ago, our world was completely covered by glaciers, a "Snowball Earth" that persisted for millions of years. Incredibly, this unimaginable cold led to the remarkable diversification of life on earth known as the Cambrian explosion. With a geologist's eye and a knack for storytelling, Graham Shields explores when and how such inhospitable conditions enabled animals to evolve, radiate, and diversify into our earliest ancestors.

If you live on a rapidly changing planet, you'd be wise to learn how it works. The giant old forests on a skinny stretch of land on the far west coast of North America have a lot to say about living in a twitchy world.

How four tools enabled humanity to control its destiny What enabled us to go from simple stone tools to smartphones? How did bands of hunter-gatherers evolve into multinational empires? Listeners of Sapiens will say a cognitive revolution - a dramatic evolutionary change that altered our brains, turning primitive humans into modern ones - caused a cultural explosion. In Transcendence, Gaia Vince argues instead that modern humans are the product of a nuanced coevolution of our genes, environment, and culture that goes back into deep time.

Raging wildfires have devastated vast areas of California and Australia in recent years, and predictions are that we will see more of the same in coming years as a result of climate change. But this is nothing new. Andrew C. Scott tells the whole story of fire's impact on our planet's atmosphere, climate, vegetation, ecology, and the evolution of plant and animal life. It has caused mass extinctions, and it has propelled the spread of flowering plants. The exciting evidence we can now draw on has been preserved in fossilized charcoal, found in rocks hundreds of millions of years old....

This “accessible and always entertaining” (Booklist) combination of history, pop science, and in-depth reporting offers a fascinating account of the asteroids that hit Earth long ago and those streaming toward us now, as well as how prepared we are against asteroid-caused catastrophe. One of...

A mother kisses her child's scraped knee. A father embraces his long-lost son. A dog greets its owner with desperate joy. Every culture, every species, every corner of the living world engages in these intimate acts of connection. We've been told these are merely displays of affection. But what if there’s something more? WHAT IF A KISS IS MORE THAN JUST A KISS? For the first time in human history, we are starting to see the hidden force that builds life through connection—not because we discovered something new, but because we have broken something ancient.

A preeminent physicist unveils a field-defining theory of the origins and purpose of life. Why are we alive? Most things in the universe aren't. And everything that is alive traces back to things that, puzzlingly, weren't. For centuries, the scientific question of life's origins has confounded...

This Isn’t Fine is a surprisingly funny and accessible ride through a world on the brink of collapse—and what we can do to survive it. Diving headfirst into finance and energy, culture and ecology, Taylor Ahlstrom transforms the complex systems and histories that underpin our society into relatable narratives, all while mythbusting popular delusions on everything from free-market capitalism to electric cars.

In THE WORST HARD TIME, Timothy Egan put the environmental disaster of the Dust Bowl at the center of a rich history, told through characters he brought to indelible life. Now he performs the same alchemy with the Big Burn, the largest-ever forest fire in America and the tragedy that cemented...