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A growing number of scientists believe a sixth mass extinction event of a magnitude equal to the prior five has been unfolding for the past 10,000 years as humans have made their mark around the ...
It was those changes after the impact that likely caused the global mass extinction. These asteroids, while smaller than the dinosaur killer, struck our planet about 25,000 years apart.
"It's sad that a species that managed to coexist with dinosaurs, that managed to resist a mass extinction, is now threatened by human be. ... Yahoo Finance. Why the Dow is suddenly in a historic funk.
An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms .
Late Ordovician mass extinction: 445-444 Ma Global cooling and sea level drop, and/or global warming related to volcanism and anoxia [41] Cambrian:
The markers are consistent with a mass extinction, [50] [51] or with a massive warming resulting from the release of methane ice. [52] Such changes may reflect a cause of the Cambrian explosion, although they may also have resulted from an increased level of biological activity—a possible result of the explosion. [ 52 ]
Image credits: Colossal Biosciences We are currently living in a “period of mass extinction.” In broad terms, this means that species are vanishing at an exponential rate — far faster than ...
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