Periodic mass extinctions on Earth, as indicated in the global fossil record, could be linked to a suspected ninth planet, according to research published by a faculty member of the University of Arkansas Department of Mathematical ...
Astronomy
Mar 30, 2016
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Imagine dolphins disappearing from the world's oceans as a result of prolonged climate change and slower evolution. As shocking and unlikely as such an event might be, it happened in the past to a group of marine animals: ...
Archaeology
Mar 9, 2016
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Marine turtles experienced an evolutionary windfall thanks to a mass extinction of crocodyliforms around 145 million years ago, say researchers.
Archaeology
Mar 9, 2016
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(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 ...
Long before the dinosaurs, hefty herbivores called pareiasaurs ruled the Earth. Now, for the first time, a detailed investigation of all Chinese specimens of these creatures – often described as the 'ugliest fossil reptiles' ...
Archaeology
Feb 19, 2016
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Secondary sexual characteristics are features that appear at sexual maturity and distinguish the two sexes of a species. Studies of secondary sexual characteristics in a species are vital for fully understanding its behavior, ...
Archaeology
Feb 18, 2016
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Stanford scientists have found that chronically low levels of oxygen throughout the oceans hampered the recovery of life after the Permian-Triassic extinction, the most catastrophic die-off in our planet's history. Also known ...
Earth Sciences
Feb 17, 2016
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You know that greenhouse gases are changing the climate. You probably know drinking water is becoming increasingly scarce, and that we're living through a mass extinction.
Environment
Feb 17, 2016
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Mammals with large brains tend to be smarter but they also face a greater chance today of going extinct, according to a study published Wednesday.
Ecology
Feb 17, 2016
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European bison imported from Poland now roam Denmark's Baltic island of Bornholm in places where the animals haven't lived for thousands of years. Meanwhile, in a far corner of Siberia, scientists are attempting to reconstruct ...
Ecology
Feb 8, 2016
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