(Phys.org)—The Permian geologic period that ended the Paleozoic era climaxed around 252 million years ago with a sweeping global mass extinction event in which 90 to 95 percent of marine life became extinct. It would take ...
(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper to be published ...
Earth Sciences
Apr 27, 2009
14
5
A pair of paleobiologists from Scripps Institution of Oceanography, UC San Diego have determined that the world's most numerous and diverse vertebrates – ray-finned fishes – began their ecological dominance of the oceans ...
Evolution
Jun 30, 2015
0
149
A team of paleontologists from the University of Washington and its Burke Museum of Natural History and Culture excavated four dinosaurs in northeastern Montana this summer. All fossils will be brought back to the Burke Museum ...
Paleontology & Fossils
Sep 21, 2021
0
6632
Research by New York University Biology Professor Michael Rampino concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological ...
Astronomy
Feb 19, 2015
35
1853
An international team led by researchers from the Evolutionary Studies Institute (ESI) at the University of the Witwatersrand, Johannesburg, has obtained an age from rocks of the Great Karoo that shed light on the timing ...
Archaeology
Jul 7, 2015
10
1432
Diverse and full of sea life, the Earth's Devonian era—taking place more than 370 million years ago—saw the emergence of the first seed-bearing plants, which spread as large forests across the continents of Gondwana and ...
Evolution
Dec 6, 2023
0
388
Methane emissions created by volcanic activity burning buried fossil fuel deposits could have played a major role in the global warming that triggered the largest mass extinction event in Earth's history, a new study suggests.
Earth Sciences
Nov 30, 2022
1
360
Is our Sun part of a binary star system? An unseen companion star, nicknamed 'Nemesis,' may be sending comets towards Earth. If Nemesis exists, NASA's new WISE telescope should be able to spot it.
Astronomy
Mar 11, 2010
2
0
As the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) prepares to unveil a thorough diagnosis of the health of Earth's plant and animal species, this is what we already know:
Ecology
Mar 16, 2018
0
505
