how many animals become extinct every day?
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Scientists estimate that 150-200 species of plant, insect, bird and mammal become extinct every 24 hours. This is nearly 1,000 times the “natural” or “background” rate and, say many biologists, is greater than anything the world has experienced since the vanishing of the dinosaurs nearly 65m years ago.
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Two events occurred that killed off 27% of all families, 57% of all genera and 60% to 70% of all species. Together they are ranked by many scientists as the second largest of the five major extinctions in Earth's history in terms of percentage of genera that became extinct.
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And this is a species already threatened by habitat loss and poaching. The other 1.8 million animals that have likely perished include frogs, anteaters, and ocelots, as well as slower and smaller creatures like sloths, armadillos, insects, and reptiles.
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We may very well be. But recent studies have cited extinction rates that are extremely fuzzy and vary wildly. The Millennium Ecosystem Assessment, which involved more than a thousand experts, estimated an extinction rate that was later calculated at up to 8,700 species a year, or 24 a day.
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THE PLIGHT OF ENDANGERED SPECIES: There are now 41,415 species on the IUCN Red List, and 16,306 of them are endangered species threatened with extinction. This is up from 16,118 last year. This includes both endangered animals and endangered plants.
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Extinction was global during this period, eliminating 49–60% of marine genera and nearly 85% of marine species. Brachiopods, bivalves, echinoderms, bryozoans and corals were particularly affected.
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As of July 2016, the International Union for Conservation of Nature (IUCN) listed 33 extinct in the wild animal species. Approximately 0.05% of all evaluated animal species are listed as extinct in the wild.
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According to the animal shelter statistics, in 2017 around 1.5 million animals in shelters were euthanized. 670,000 dogs and 860,000 cats made up this staggering number, which amounted to almost 5,500 animals killed every day.
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Of all species that have existed on Earth, 99.9 percent are now extinct. Many of them perished in five cataclysmic events. According to a recent poll, seven out of ten biologists think we are currently in the throes of a sixth mass extinction.
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Extinction Rates Recent studies estimate about eight million species on Earth, of which at least 15,000 are threatened with extinction. ... Regardless, scientists agree that today's extinction rate is hundreds, or even thousands, of times higher than the natural baseline rate.
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Over 7,000 species around the world are considered endangered. That number doesn't even include the plants, animals, and other life-forms that are listed by some scientists as vulnerable, critically endangered, or extinct in the wild—all rankings that mean a species is inching closer and closer to ill-fated extinction.
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More than 27,000 species worldwide are threatened with extinction, according to the International Union for Conservation and Nature. DW looks at some of the critically endangered Asian species, whose survival is at risk.
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Humanity has wiped out 60% of animal populations since 1970, report finds. ... Humanity has wiped out 60% of mammals, birds, fish and reptiles since 1970, leading the world's foremost experts to warn that the annihilation of wildlife is now an emergency that threatens civilisation.
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After analysing the eradication of millions of ancient species, scientists have found that a mass extinction is due any moment now. Their research has shown that every 62 million years - plus or minus 3m years - creatures are wiped from the planet's surface in massive numbers.
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There are about 300 species of Australian animals that are endangered. This means that these animals may disappear from the face of the Earth forever. Humans are directly responsible for most recent extinctions. (Learn about extinction here.)
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A: An average of 137 species of life forms are driven into extinction every day in the world's tropical rainforests.
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There are five major causes of extinction: habitat loss, an introduced species, pollution, population growth, and overconsumption. Through the activity, students will create a list of reasons why animals can become extinct.