Diabytes
Mass extinction News
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The impact of the asteroid caused a crater 180 km wide and heated organic matter in rocks and ejected it into the atmosphere, forming soot in the stratosphere.
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66 million years ago, an asteroid approximately 12 kilometers wide slammed into Earth.
An asteroid impact behind elimination of dinosaurs is also responsible for cooling the Earth.
It released climate-altering sulphur and cooled the Earth far more than originally thought.
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While many scientists argue that the sixth mass extinction has already begun, the total number of species that have disappeared from the planet comes nowhere near the most apocalyptic events of the past and the rate of species loss is comparable.
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Calling the loss of wildlife a "biological annihilation" that represents a "frightening assault on the foundations of human civilisation", they say billions of regional or local populations have been lost.
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As many as 43 percent of sea turtle species were lost, along with 35 percent of sea birds and nine percent of sharks.
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Pitch rotation results in basic up and down movement, and yaw rotation results in side-to-side, crosswise motion like a a cow munching away on grass.
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The researchers said that the extinction events were linked to climate change caused by massive volcanic activity.
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It is the first time that the various stages of a mass extinction have been accurately understood and that scientists have been able to assess the major role played by volcanic explosions in these climate processes.
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As per reports, an award-winning NASA scientist had warned that human race at this moment remains ill-prepared for any life-threatening event from outer space.
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Authors of the study are shocked because this kind of pattern hasn't been seen before in the half billion years of the animal fossil record.
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The fossil record is much more durable than any human record, says researcher.
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Scientists have discovered a new fossil reptile that lived 250 million years ago in Brazil, which may help understand the origins of dinosaurs, flying reptiles and crocodiles.
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