(Phys.org) —Scientists have long believed an asteroid that collided with the Earth around 66 million years ago, leaving an enormous crater near Chicxulub Mexico, caused the demise of the dinosaurs and many other living ...
Evidence left at the crime scene is abundant and global: Fossil remains show that sometime around 252 million years ago, about 90 percent of all species on Earth were suddenly wiped out—by far the largest of this planet's ...
Earth Sciences
Mar 31, 2014
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Scientists from Carnegie and Smithsonian museums and the University of Utah today unveiled the discovery, naming and description of a sharp-clawed, 500-pound, bird-like dinosaur that roamed the Dakotas with T. rex 66 million ...
Archaeology
Mar 19, 2014
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The space rock that smashed into Earth 65 million years ago, famously wiping out the dinosaurs, unleashed acid rain that turned the ocean surface into a witches' brew, researchers said Sunday.
Earth Sciences
Mar 9, 2014
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The largest mass extinction in the history of animal life occurred some 252 million years ago, wiping out more than 96 percent of marine species and 70 percent of life on land—including the largest insects known to have ...
Earth Sciences
Feb 10, 2014
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What did Tyrannosaurus rex really look like? Depending on which artist's impression you look at, the carnivorous king of the Cretaceous was a dull grey, an earthy brown, maybe a dark green... perhaps it was ochre, or even ...
Archaeology
Jan 8, 2014
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When trying to understand the present, it's helpful to look to history. New research from the University of Nebraska–Lincoln examined the fossil record going back 66 million years and tracked changes to mammalian ecosystems ...
Ecology
15 hours ago
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The debate has raged for decades: Was it humans or climate change that led to the extinction of many species of large mammals, birds, and reptiles that have disappeared from Earth over the past 50,000 years?
Evolution
Jul 1, 2024
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If you've ever snacked on raisins or enjoyed a glass of wine, you may, in part, have the extinction of the dinosaurs to thank for it. In a discovery described in the journal Nature Plants, researchers found fossil grape seeds ...
Plants & Animals
Jul 1, 2024
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Ammonites were not in decline before their extinction, scientists have found.
Paleontology & Fossils
Jun 27, 2024
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