Roughly 35 million years ago, Earth cooled rapidly. At roughly the same time, the Drake Passage formed between South America and the Antarctic, paving the way for the Antarctic Circumpolar Current. Thanks to these two factors, ...
Earth Sciences
Feb 21, 2022
10
298
Discoveries from the early stages of owl evolution are exceedingly rare. An approximately 60-million-year-old leg bone is the oldest fossil that can be assigned to an owl. "Other owls from this time period are also only known ...
Archaeology
Jul 28, 2020
0
35
A new study that reconstructed ocean temperatures from millions of years ago could provide new insight into how the Earth responds to climate change.
Earth Sciences
Nov 24, 2009
9
0
Some 56 million years ago, a massive pulse of carbon dioxide into the atmosphere sent global temperatures soaring. In the oceans, carbonate sediments dissolved, some organisms went extinct and others evolved.
Earth Sciences
Jun 2, 2014
16
1
Spinescence (a general term for the phenomena of spines, prickles, and thorns on plants) is an important functional trait shared by numerous plant families worldwide and mainly provides physical protection against vertebrate ...
Evolution
Jul 5, 2022
0
257
Scientists working in the North Atlantic have found the clearest geologic evidence yet of a planetary thermostat that counteracts the warming cause by massive amounts of greenhouse gas by absorbing CO2 into the rocky sediments ...
Earth Sciences
Jul 26, 2016
10
30
Two sister species of near-primate, called "primatomorphans," dating back about 52 million years have been identified by researchers at the University of Kansas as the oldest to have dwelled north of the Arctic Circle. The ...
Paleontology & Fossils
Jan 25, 2023
0
89
Changes in Earth's orbit that favored hotter conditions may have helped trigger a rapid global warming event 56 million years ago that is considered an analog for modern climate change, according to an international team ...
Earth Sciences
Dec 13, 2022
1
220
Paleontologists from the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, recently collected some early Paleogene (Upper Paleocene through Middle Eocene) mesonychid specimens from the ...
Archaeology
Aug 8, 2012
0
0
Monsoons are seasonal climate conditions resulting from changes in wind that bring extreme drought or rain, depending upon the time of year. Those occurring in south Asia and east Asia are affected by a combination of atmospheric ...
