(Phys.org)—Sometimes when a star collapses into a supernova, it releases an intense, narrow beam of gamma rays. Gamma-ray bursts often last just a few seconds, but during that time they can release as much energy as the ...
What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately set the stage for the dinosaur extinction, ...
Earth Sciences
Nov 27, 2023
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1045
The origin of bees is tens of millions of years older than most previous estimates, a new study shows.
Evolution
Jul 31, 2023
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603
Three hundred miles off the southeastern coast of Africa, Madagascar is a land of mystery. There is such a rich diversity of vertebrates found only on the island that is so unlike anything seen elsewhere in the world that ...
A team of scientists led by San Diego Zoo Wildlife Alliance and University of California, Santa Cruz has discovered that animals' genomic information can help predict which mammal species are more likely to face extinction.
Ecology
Apr 27, 2023
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61
A new study suggests that predatory dinosaurs, such as Tyrannosaurus rex, did not have permanently exposed teeth as depicted in films such as Jurassic Park, but instead had scaly, lizard-like lips covering and sealing their ...
Evolution
Mar 30, 2023
0
357
An international group of researchers led by the University of Tasmania has taken a fresh look into the disappearance, and conceivable reappearance, of the Tasmanian tiger thylacine. The last thylacine confirmed killed in ...
A team of climate scientists from France, Russia and Germany has found that ancient viruses dormant for tens of thousands of years in permafrost can infect modern amoeba when they are revived. For their study, reported on ...
A pair of researchers, Guillaume Guinot and Fabien Condamine, both with Université de Montpellier, in France, has looked at the impact of the Cretaceous–Paleogene (K-Pg) extinction event on elasmobranch species to learn ...
The meat-eating dinosaurs known as theropods that roamed the ancient Earth ranged in size from the bus-sized T. rex to the smaller, dog-sized Velociraptor. Scientists puzzling over how such wildly different dinosaur sizes ...
Evolution
Feb 23, 2023
0
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