gokker schreef op 21 juni 2020 18:27:
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Why Did the Woolly Mammoth Die Out?
Reason Number Three: Meteorites or CometsResearch in 2007 revealed that the demise of the woolly mammoth, in North America at least, may have actually been caused by the sudden impact of a meteorite or comet hitting the Earth. Scientists from Brown University, in Rhode Island, USA, believe that they have found evidence of an asteroid hitting the Earth, which led to the extinction of large mammals, including the woolly mammoth in North America, as a result of massive climate change.
The scientists argue that a large asteroid or comets would have hit North America, leading to the melting of ice sheets, extreme wildfires and the whipping up of hurricane force winds, which in turn led to the extreme ‘big freeze’ cooling of what is referred to as the Younger Dryas Period. The Younger Dryas period took place an estimated 10,000 or so years ago, when the world was heating up from the last ice age. However,
it was a short-lived (700 years) cold snap that had a massive effect on the climate of North America and Europe.
www.nationalgeographic.com.au/history...www.brown.edu/Administration/News_Bur...