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ScienceDaily: Fossils & Ruins News |
| First dinosaur era crab fully preserved in amber discovered Posted: 20 Oct 2021 12:02 PM PDT Researchers describe the first crab from the Cretaceous dinosaur era preserved in amber. The study used micro CT to examine and describe Cretapsara athanata, the oldest modern-looking crab (approximately 100 million years old) and the most complete fossil crab ever discovered. |
| Europeans in the Americas 1000 years ago Posted: 20 Oct 2021 10:59 AM PDT The Vikings were active in North America in the year 1021 AD. This now represents the earliest -- and only -- known year in which Europeans were present in the Americas prior to the arrival of Columbus in 1492 AD. It also represents a definitive point in time by which the Atlantic Ocean had been traversed and human migration had finally encircled the globe. |
| Origin of domestic horses finally established Posted: 20 Oct 2021 10:59 AM PDT The modern horse was domesticated around 2200 years BCE in the northern Caucasus. In the centuries that followed it spread throughout Asia and Europe. An international team of 162 scientists collected, sequenced and compared 273 genomes from ancient horses scattered across Eurasia to come up with this finding. |
| Humans did not cause woolly mammoths to go extinct -- climate change did Posted: 20 Oct 2021 10:59 AM PDT Humans did not cause woolly mammoths to go extinct -- climate change did. For five million years, woolly mammoths roamed the earth until they vanished for good nearly 4,000 years ago -- and scientists have finally proved why. The hairy cousins of today's elephants lived alongside early humans and were a regular staple of their diet -- their skeletons were used to build shelters, harpoons were carved from their giant tusks, artwork featuring them is daubed on cave walls, and 30,000 years ago, the oldest known musical instrument, a flute, was made out of a mammoth bone. |
| Small-scale foragers left more than footprints on the landscape Posted: 19 Oct 2021 07:31 PM PDT Archaeological sites like the Great Wall of China and the pyramids can be seen with the naked eye from space, but for ancient societies that did not build, their traces on the landscape are more difficult to find. Now researchers have used satellite data to identify areas in coastal southwest Madagascar where indigenous foragers altered their surroundings. |
| How quickly does the climate recover? Posted: 19 Oct 2021 09:35 AM PDT It took the climate 20,000 to 50,000 years to stabilize after the rise in global temperatures of five to eight degrees Celsius 56 million years ago. Climate change today is causing temperatures to rise and is also increasing the likelihood of storms, heavy rain, and flooding -- the recent flood disaster in the Ahr valley in Germany is just one such example. What we need to ask ourselves in this connection is how quickly the climate can recover from the warming caused by an increase in carbon dioxide in the atmosphere. |
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