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When Life Nearly Died: The Greatest Mass

When Life Nearly Died: The Greatest Mass

When Life Nearly Died: The Greatest Mass Extinction of All Time by Michael Benton

When Life Nearly Died: The Greatest Mass Extinction of All Time



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When Life Nearly Died: The Greatest Mass Extinction of All Time Michael Benton ebook
ISBN: 9780500285732
Format: pdf
Publisher: W W Norton & Co Inc
Page: 336


There have also been other mass extinctions in the geological past, for instance the Permian extinction before the age of the dinosaurs which also wiped out nearly all life on earth. Most current species would disappear in the 6th great extinction. One group says the Northern Hemisphere will be devoid of people by the 2030's, with the population of the Southern Hemisphere dying out a few years later. Many scientists have thought that dinosaur predecessors missed the race to fill habitats emptied when nine out of 10 species disappeared during the Earth's largest mass extinction, approximately 252 million years ago. It would be a death trap in itself. Some species are more critical than others in preserving the It is best known for the extinction of non-avian dinosaurs, but large numbers of plant species also became extinct at that time. The oceans are being depleted of life, rainforests are vanishing, and even our closest relatives, the great apes, have declined by more than 95% in the past century. It was the worst of the world's extinctions and is famously known as the 'Great Dying' – a time on Earth when life nearly ended. When I raised the danger that all sorts of end-times seekers and tin-foil types would pile on board this new idea, participants in the Near Term Extinction discussion site, - yes that's online already - they said "of course, we know that. Santa Barbara, California - The sixth mass extinction of both plants and animals is underway, scientists say, warning that nearly 50 percent of all species could disappear within the lifetimes of people now living on Earth. The biggest one by far is between the Paleozoic and Mesozoic eras — at the Permian-Triassic boundary (“P” and “Tr” above). All I said was that the increase seemed too small to be of any real significance and that we haven't seen this mass die off yet. For example, I would never have guessed the European Eel was on the verge of dying out in the wild Worse, due to its habit of dashing out to the Sargasso Sea to spawn, is nearly impossible to breed in captivity. The last mass extinctions occurred millions of years ago. However, if even a 'moderate' impact event occurred in 9,500 B.C. If it's correct, tackling those "dire and escalating threats" urgently is the only way to prevent the mass die-off reaching Ordovician proportions. It also has to be recognized that, due in great part to global warming and other human activity, we can expect to see a global extinction event over the course of the next few decades. In the absence of an effective global mitigation effort, governments world-wide are now presiding over the demise of future generations and of nature, tracking toward one of the greatest mass extinction events nature has seen. 'Mammals missing in the 20th century were nearly three times as likely to be rediscovered as those that disappeared in the 19th century,' Dr Fisher added.

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