Résultats de "David Quammen" dans Toutes les catégories

David Quammen's book, The Song of the Dodo, is a brilliant, stirring work, breathtaking in its scope, far-reaching in its message - a crucial book in precarious times, which radically alters the way in which we understand the natural world and our place in that world. It's also a book full of entertainment and wonders. In The Song of the Dodo, we follow Quammen's keen intellect through the ideas, theories, and experiments of prominent naturalists of the last two centuries.

The emergence of strange new diseases is a frightening problem that seems to be getting worse. In this age of speedy travel, it threatens a worldwide pandemic. We hear news reports of Ebola, SARS, AIDS, and something called Hendra killing horses and people in Australia - but those reports miss the big truth that such phenomena are part of a single pattern. The bugs that transmit these diseases share one thing: they originate in wild animals and pass to humans by a process called spillover. David Quammen tracks this subject around the world.

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.

Breathless is the story of SARS-CoV-2 and its fierce journey through the human population, as seen by the scientists who study its origin, its ever-changing nature, and its capacity to kill us. David Quammen expertly shows how strange new viruses emerge from animals into humans as we disrupt wild ecosystems, and how those viruses adapt to their human hosts, sometimes causing global catastrophe. He explains why this coronavirus will probably be a “forever virus”, destined to circulate among humans and bedevil us endlessly, in one variant form or another.

In September 1838, a young Englishman named Charles Darwin hit upon the idea that "natural selection" among competing individuals would lead to wondrous adaptations and species diversity. Twenty-one years passed between that epiphany and publication of On the Origin of Species. The human drama and scientific controversy of that time constitute a fascinating, tangled tale that illuminates this cautious naturalist who sparked an intellectual revolution.

In 1976 a deadly virus emerged from the Congo forest. As swiftly as it came, it disappeared, leaving no trace. Over the four decades since, Ebola has emerged sporadically, each time to devastating effect. It can kill up to 90 percent of its victims. In between these outbreaks, it is untraceable, hiding deep in the jungle. The search is on to find Ebola's elusive host animal.

En esta obra de referencia internacional, David Quammen se sumerge en la historia reciente de esas enfermedades zoonóticas, y persigue su rastro en compañía de los mejores científicos del mundo en la selva centroafricana, las cuevas de China meridional o las azoteas de Bangladés, pero también en los sofisticados laboratorios cuyo personal investiga virus letales bajo las más altas medidas de seguridad.

"Lively writing about science and nature depends less on the offering of good answers, I think, than on the offering of good questions," said David Quammen in the original introduction to Natural Acts. For more than two decades, he has stuck to that credo. In this updated version of Natural Acts, curiosity leads him from New Mexico to Romania, from the Congo to the Amazon, asking questions about mosquitoes (what are their redeeming merits?), dinosaurs (how did they change the life of a dyslexic Vietnam vet?), and cloning (can it save endangered species?).

When Soviet agent Viktor Tronko defected to the US in 1964, he made two intriguing claims: he insisted that Russia had not placed a mole inside the CIA, and that Lee Harvey Oswald had not been recruited to assassinate the president. Convinced that Tronko was working as a disinformation agent, the CIA furiously did everything they could to break him. But Tronko had one more surprise for them: he refused to break.