Most scientists agree that a "mass extinction" event is underway on Earth, with species disappearing hundreds of time quicker under the influence of human activity.
Ecology
Apr 25, 2019
5
57
In the brain, when neurons fire off electrical signals to their neighbors, this happens through an "all-or-none" response. The signal only happens once conditions in the cell breach a certain threshold.
Earth Sciences
Jul 8, 2019
29
6704
The mass extinction at the end of the Permian Period 252 million years ago—one of the great turnovers of life on Earth—appears to have played out differently and at different times on land and in the sea, according to ...
Archaeology
Mar 26, 2020
6
2737
There is no longer any doubt: We are entering a mass extinction that threatens humanity's existence.
Ecology
Jun 19, 2015
198
6034
(Phys.org) —It's has been know that massive increases in emission of CO2 from volcanoes, associated with the opening of the Atlantic Ocean in the end-Triassic Period, set off a shift in state of the climate which caused ...
Earth Sciences
Mar 22, 2013
143
1
A new dinosaur which formed part of an array of 'unusual' creatures has been discovered in Argentina.
Paleontology & Fossils
Feb 18, 2022
1
10160
(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 ...
Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international, Yale-led team of researchers. It was all about the asteroid.
Earth Sciences
Jan 16, 2020
17
2186
When an asteroid hit the Earth 66 million years ago, it set off a devastating mass extinction. The dinosaurs (except for a few birds) all died out, along with lots of the mammals. But some small mammals survived, laying the ...
Evolution
Oct 5, 2023
0
204
Most scientists agree that a "mass extinction" event is underway with the Earth's wildlife disappearing at an alarming rate, mainly due to human activity.
Earth Sciences
Jul 11, 2017
0
20
