Resultados para "Extinction" en Ciencia

Learn about the nature of Extinction with iMinds insightful knowledge series. Extinction means the death of a species of animal or plant. When you think of extinct species, you probably think of dinosaurs. So it may amaze you to know that 99% of all species that once lived on the earth are now extinct!

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.

In Extinction and the Human, Timothy Sweet ponders the realities of animal extinction and endangerment and the often divergent Native American and Euro-American narratives that surround them. He focuses especially on the force of human impact on megafauna—mammoths, whales, and the North American bison. Ultimately, he argues, it is the critical assessment of ideas of human exceptionalism that provides a necessary counterpoint both to apologies for human mastery over nature and deep ecology's attempts to erase the human.

Scientists have long attempted to understand Earth’s past, and in service to that effort, they have divided the world’s history into eons, eras, periods, epochs, and ages. For example, the current eon is called the Phanerozoic Eon, which means “visible life”. This is the eon in which multicellular life has evolved and thrived. Before this, life was microscopic (single cells).

A former endangered species biologist looks at the ongoing sixth mass extinction through the prism of human behavior, personal experience, ecology, evolutionary biology, and contemporary conservation efforts. He provides new insights into factors triggering the current mass extinction event and examines conventional wisdom regarding human intelligence. The author suggests—as humanity edges ever closer to disappearing forever—a clear-eyed, real-world rationale for resignation but also acceptance.

Mass Extinction Number 6: The End of Our Time on Earth is a sobering and powerful exploration of the ongoing ecological collapse unfolding in the 21st century—a catastrophe not caused by an asteroid or supervolcano, but by us. In the tradition of Rachel Carson’s Silent Spring and Elizabeth Kolbert’s The Sixth Extinction, Ronald Baldwin brings a unique blend of investigative clarity, emotional urgency, and narrative power to this stark warning about humanity’s role in triggering the sixth mass extinction event in Earth’s history.

Insects are dying off at an apocalyptic rate, or are they? Now there's a way to find out. In this limited series, we go to a remote island rainforest to listen to sound-based research that could reveal the truth about global insect death.

Approximately 200,000 years ago, as modern humans began to radiate out from their evolutionary birthplace in Africa, Neanderthals were already thriving in Europe - descendants of a much earlier migration of the African genus Homo. But when modern humans eventually made their way to Europe 45,000 years ago, Neanderthals suddenly vanished.

In The Last Days of the Dinosaurs, Riley Black walks listeners through what happened in the days, the years, the centuries and the million years after the impact, tracking the sweeping disruptions that overtook this one spot, and imagining what might have been happening elsewhere on the globe. Picture yourself in the Cretaceous period. It's a sunny afternoon in the Hell Creek of ancient Montana 66 million years ago. In a matter of hours, everything here will be wiped away.

The great auk is one of the most tragic and documented examples of extinction. A flightless bird that bred primarily on the remote islands of the North Atlantic, the last of its kind were killed in Iceland in 1844. Gisli Pálsson draws on firsthand accounts from the Icelanders who hunted the last great auks to bring to life a bygone age of Victorian scientific exploration while offering vital insights into the extinction of species.

As global rates of plant and animal extinctions mount, anxieties about the future of the earth's ecosystems are fueling ever more ambitious efforts at conservation, which draw on Western scientific principles to manage species and biodiversity. In Revenant Ecologies, Audra Mitchell argues that these responses not only ignore but also magnify powerful forms of structural violence like colonialism, racism, genocide, extractivism, ableism, and heteronormativity, ultimately contributing to the destruction of unique life forms and ecosystems.

A heady blend of international intrigue, social theory, botanical lore, and ecological study, The Cactus Hunters offers complex insight into species extinction, conservation, and more-than-human care.

Earth is embroiled in its sixth major extinction event—this time caused not by asteroids or volcanos, but by us. At bottom, preventing this sixth extinction is a spiritual and philosophical problem, for it is the assumptions defining us and our relation to earth that are driving the devastation. Those assumptions insist on a fundamental separation of human and earth that devalues earth and enables our exploitative relation to it.

In this thrilling and capacious book, Troy Vettese and Drew Pendergrass challenge the inertia of capitalism and the left alike and propose a radical plan to address climate disaster and guarantee the good life for all. Consumption in the global North can’t continue unabated, and we must give up the idea that humans can fully control the Earth through technological “fixes” that only wreak further havoc. Rather than allow the forces of the free market to destroy the planet, we must strive for a post-capitalist society able to guarantee the good life for the entire planet.

As wildfires char the American West, extreme weather transforms landscapes, glaciers retreat, and climate zones shift, we are undeniably experiencing the effects of the climate crisis in more and more destructive ways. Climate change is impacting every inhabited region of the world, but there is much we can still do. Unsettling explores human impacts on the environment through science, popular culture, personal narrative, and landscape. Science writer Elizabeth Weinberg explores how climate change is a direct result of white supremacy, colonialism, sexism, and heteronormativity.

Extinction Rebellion (XR, for short) is an emergency response. Politics as usual, governments, as usual, have let down the peoples of the world in an extreme way: We are on course for eco-driven societal collapse, and we are extinguishing other species very rapidly. We could even end up making ourselves extinct. XR suggests that when your government is driving you and your family over a cliff, it is no longer a legitimate government. Rebellion against it is permitted - indeed, it is required. But XR is insistent that such rebellion must be nonviolent.

When we humans love foods, we love them a lot. In fact, we have often eaten them into extinction, whether it is the megafauna of the Paleolithic world or the passenger pigeon of the last century. In Lost Feast, food expert Lenore Newman sets out to look at the history of the foods we have loved to death and what that means for the culinary paths we choose for the future.

In Unnatural Companions, journalist Peter Christie issues a call to action for pet owners. If we hope to reverse the alarming trend of wildlife decline, pet owners must acknowledge the pets-versus-conservation dilemma and concede that our well-fed and sheltered cats too often prey on small backyard wildlife and seemingly harmless reptiles released into the wild might be the next destructive invasive species. We want our pets to eat nutritionally healthy food, but how does the designer food we feed them impact the environment?

Over the last half a billion years, there have been five mass extinctions of life on earth. Scientists around the world are currently monitoring the sixth, predicted to be the most devastating extinction event since the asteroid impact that wiped out the dinosaurs. Elizabeth Kolbert combines brilliant field reporting, the history of ideas and the work of geologists, botanists and marine biologists to tell the gripping stories of a dozen species – including the Panamanian golden frog and the Sumatran rhino – some already gone, others at the point of vanishing.

We live in an age of mass extinction. The earth's biodiversity is decreasing at a faster rate than ever. Industrial agriculture and the standardisation of taste are not only wiping out many edible plants but also the food cultures, histories and livelihoods that go with them. Inspired by a global project to collect and preserve foods that are at risk of extinction, Dan Saladino sets out to encounter these endangered foods.