Our planet's worst mass extinction event happened 252 million years ago when massive volcanic eruptions caused catastrophic climate change. The vast majority of animal species went extinct, and when the dust settled, the ...
Earth Sciences
Apr 19, 2021
1
552
Dr. Luis Buatois (Ph.D.), a faculty member in the Department of Geological Sciences in USask's College of Arts and Science, is the lead author on a new paper published in the journal Terra Nova. The article, titled "Impact ...
Plants & Animals
Apr 16, 2021
0
413
Mass extinctions are times in Earth's past when large proportions of life suddenly and catastrophically died. These have occurred periodically over the past 550 million years. The exact causes of these extinctions are not ...
Earth Sciences
Mar 31, 2021
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21
Over the course of Earth's history, several mass extinction events have destroyed ecosystems, including one that famously wiped out the dinosaurs. But none were as devastating as "The Great Dying," which took place 252 million ...
Ecology
Mar 17, 2021
1
880
Ancient rocks from Tennessee revealed the Earth's rotation and orbit around the sun controlled the timing of oceanic dead zones in a mass extinction of marine life about 370 million years ago.
Earth Sciences
Mar 5, 2021
1
270
Anyone with even a passing interest in the global environment knows all is not well. But just how bad is the situation? Our new paper shows the outlook for life on Earth is more dire than is generally understood.
Earth Sciences
Jan 13, 2021
96
14587
The asteroid impact 66 million years ago that ushered in a mass extinction and ended the dinosaurs also killed off many of the plants that they relied on for food. Fossil leaf assemblages from Patagonia, Argentina, suggest ...
Paleontology & Fossils
Jan 5, 2021
0
328
It's known that the primary cause of the mass extinction of dinosaurs, about 66 million years ago, was a meteorite impact. But the exact mechanisms that linked the meteorite impact to mass extinction remain unclear, though ...
Earth Sciences
Dec 16, 2020
0
476
Mass extinctions of land-dwelling animals—including amphibians, reptiles, mammals, and birds—follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a ...
Ecology
Dec 11, 2020
23
3357
Charles Darwin's landmark opus "On the Origin of the Species" ends with a beautiful summary of his theory of evolution: "There is a grandeur in this view of life, with its several powers, having been originally breathed into ...
Evolution
Dec 10, 2020
14
14342
