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  • Recent responses to climate change reveal the drivers of . . .
    However, most plant and animal species are terrestrial (SI Appendix, Text S2), and most biodiversity hotspots involve montane regions Thus, our results should be relevant to much of Earth’s plant and animal diversity We acknowledge that many other factors might affect extinction risk beyond those considered here (SI Appendix, Text S2
  • Unit 9: Species Extinction Flashcards - Quizlet
    the estimated number of species or the percentage of known species that go extinct during a certain time period, typically a year background extinction rate historic extinction rate that existed before humans dominated the planet
  • PNAS
    Habitat fragmentation is a significant threat to mammalian species, with 27% of mammals globally at risk of extinction due to habitat loss and degradation
  • Biodiversity crisis or sixth mass extinction?: Does the . . .
    However, if we consider the average rate of 180 extinctions per century, 75% of the total known species (1 4 million species) would be extinct in 800,000 years, and 75% of the total estimated species (6 5 million species) would be extinct in 3 6 million years
  • One million species threatened with extinction because of . . .
    One million of the planet’s eight million species are threatened with extinction by humans, scientists warned Monday in what is described as the most comprehensive assessment of global nature loss ever Their landmark report paints a bleak picture of a planet ravaged by an ever-growing human population, whose insatiable consumption is destroying the natural world […]
  • 7 Amazon Rainforest Endangered Species | Earth. Org
    The Amazon is home to more than 40,000 plants and over 4,000 animal species including 3,000 freshwater fish, thousands of birds and butterflies, and mammals – these are just the ones that humans have discovered
  • New theory behind Chicxulub impactor that killed the dinosaurs
    It was tens of miles wide and forever changed history when it crashed into Earth about 66 million years ago The Chicxulub impactor, as it’s known, was a plummeting asteroid or comet that left behind a crater off the coast of Mexico that spans 93 miles and goes 12 miles deep





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