Sixty-three percent. That's the proportion of mammal species that vanished from Africa and the Arabian Peninsula around 30 million years ago, after Earth's climate shifted from swampy to icy. But we are only finding out about ...
Evolution
Oct 7, 2021
2
362
A study led by Oldenburg researchers finds new explanation for the accumulation of organic compounds in oxygen-depleted marine areas. The effect could negatively feedback on the climate on geological time scales.
Earth Sciences
Jun 17, 2021
2
15
Fluctuations in the orbital parameters of the Earth are considered to be the trigger for long-term climatic fluctuations such as ice ages. This includes the variation of the inclination angle of the Earth's axis with a cycle ...
Earth Sciences
May 22, 2019
0
46
The Tibetan Plateau today is on average 4,500 meters above sea level. It is the biggest mountain-building zone on Earth. Most analyses to date indicated that, back in the Eocene period some 40 million years ago, the plateau ...
Earth Sciences
Mar 1, 2019
0
31
Guy Middleton, a historian at the Czech Institute of Egyptology at Charles University in Prague, has angered members of the group who successfully pushed for the creation of a new unit of geological time called the Meghalayan ...
Millenia ago, ancient farmers cleared land to plant wheat and maize, potatoes and squash. They flooded fields to grow rice. They began to raise livestock. And unknowingly, they may have been fundamentally altering the climate ...
Earth Sciences
Sep 6, 2018
74
1431
A team of geologists at the University of Rochester has discovered a new species of bird in the Canadian Arctic. At approximately 90 million years old, the bird fossils are among the oldest avian records found in the northernmost ...
Archaeology
Dec 19, 2016
0
51
The Cambrian Period, which occurred between 541 million and 485 million years ago, is an important point in evolutionary history where most of the major groups of animals first appear in the fossil record. Often called the ...
Paleontology & Fossils
Feb 17, 2016
0
1002
Scientists have discovered a new species of long-snouted tyrannosaur, nicknamed Pinocchio rex, which stalked the Earth more than 66 million years ago.
Archaeology
May 7, 2014
2
3
The Cambrian Period is a time when most phyla of marine invertebrates first appeared in the fossil record. Also dubbed the "Cambrian explosion," fossilized records from this time provide glimpses into evolutionary biology ...
Archaeology
Apr 10, 2014
2
1
