Geological clues suggest that the space rock that created Chicxulub crater was a carbonaceous chondrite meteorite.
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Mass extinction
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A new study led by Dartmouth College may finally settle a long-standing debate over what caused five major mass extinctions, including the event that ultimately wiped out the dinosaurs. While some scientists argue that mass extinctions were the result of comet or asteroid impacts, the new study supports the theory that volcanic activity was the key driver of the biggest extinction events in Earth’s history. #MassExtinction #Dinosaurs #Volcanoes
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Radical, wholesale change is needed right this second and cannot be delayed
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A scene from our very cold afternoon dog walk OR #paleoart of the first phase of the Ordovician Mass Extinction? It's difficult to tell.
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Flying reptiles and asteroid. Illustration of flying reptiles near a large asteroid that has entered the Earth's atmosphere.
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Ordovician–Silurian mass extinction, illustration. The Ordovician–Silurian extinction event, also known as the Late Ordovician mass extinction (LOME) around 443 million years ago, 85% of all species on Earth went extinct.
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Of the five mass extinction events on Earth, the one 252 million years ago during the Permian Period was the most devastating. The Permian mass extinction, or “Great Dying,” killed 9 out of every 10 species on the planet and its effects are still seen today.
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For more than 3.5 billion years, living organisms have thrived, multiplied and diversified to occupy every ecosystem on Earth.
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Dinosaurs Illustration by Davide Bonadonna.
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In the last 500 million years, life has had to recover from five catastrophic blows. Are humans dealing the planet a sixth?
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Should the “big five” really be the “big four”? For decades, we have recognised five devastating mass extinctions that punctuate the last half-billion years of evolution. But now two geologists are controversially arguing that the end-Triassic extinction – often described as the third largest – has no place on that list. “Certainly there was an …
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Scientists have new evidence that Earth’s many periodic mass extinctions follow a cycle of about 27 million years.
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It was a little over 20 years ago when I saw a slender-billed curlew. I was in Morocco; the bird, lanky and reasonably slim in the beak department, was feeding on a patch of wetland decorated with wil
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Most scientists agree that a "mass extinction" event is underway with the Earth's wildlife disappearing at an alarming rate, mainly du...
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A new study reveals that beyond species extinction, entire genera of vertebrates are disappearing at an alarming rate due to human activities. The passenger pigeon, the Tasmanian tiger, and the Baiji (Yangtze river dolphin) are among the most recognized casualties of what many experts refer to as t
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End Ordovician Mass Extinction. By Mark Witton. The most extreme ice age of the last 550 million years, killed of 50% of all marine genera. #Paleoart
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Researchers from the University of Michigan have shared their incredible new findings
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The death of the dinosaurs was just one of five global events that saw millions of species wiped out. How do these events happen? And how can we stop it happening again?
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