Ancient DNA and bones reveal species on the move as a result of climate changes thousands of years ago
By analyzing DNA and studying old animal bones, researchers have been able to reconstruct the animal diversity from a cave in Nordland, Norway.
By analyzing DNA and studying old animal bones, researchers have been able to reconstruct the animal diversity from a cave in Nordland, Norway.
Paleontology & Fossils
Apr 5, 2024
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83
In what is an intriguing mix of past and future, an international team of researchers, including some from the University of Bonn, has stumbled upon a surprising window to the past in Kourou in French Guiana. In the clay ...
Paleontology & Fossils
Mar 26, 2024
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195
Barrow Island, located 60 kilometers off the Pilbara in Western Australia, was once a hill overlooking an expansive coast. This was the northwestern shelf of the Australian continent, now permanently submerged by the ocean.
Archaeology
Mar 25, 2024
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141
The general term "ice age" or, more precisely, "glacial age" denotes a geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in an expansion of continental ice sheets, polar ice sheets and alpine glaciers. Within a long-term ice age, individual pulses of extra cold climate are termed "glaciations". Glaciologically, ice age implies the presence of extensive ice sheets in the northern and southern hemispheres; by this definition we are still in an ice age (because the Greenland and Antarctic ice sheets still exist).
More colloquially, when speaking of the last few thousand years, "the" ice age refers to the most recent colder period (or freezing period) with extensive ice sheets over the North American and Eurasian continents: in this sense, the most recent ice age peaked, in its Last Glacial Maximum about 20,000 years ago. This article will use the term ice age in the former, glaciological, sense: glacials for colder periods during ice ages and interglacials for the warmer periods.
This text uses material from Wikipedia, licensed under CC BY-SA