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ScienceDaily: Fossils & Ruins News |
| Livestock and dairying led to dramatic social changes in ancient Mongolia Posted: 11 May 2022 11:23 AM PDT The movement of herders and livestock into the eastern steppe is of great interest to researchers, but few scholars have linked the introduction of herds and horses to the rise of complex societies. |
| Ancient DNA gives new insights into 'lost' Indigenous people of Uruguay Posted: 11 May 2022 09:35 AM PDT The first whole genome sequences of the ancient people of Uruguay provide a genetic snapshot of Indigenous populations of the region before they were decimated by a series of European military campaigns. |
| Ancient microorganisms found in halite may have implications for search for life Posted: 11 May 2022 09:34 AM PDT Primary fluid inclusions in bedded halite from the 830-million-year-old Browne Formation of central Australia contain organic solids and liquids, as documented with transmitted light and UV-vis petrography. These objects are consistent in size, shape, and fluorescent response to cells of prokaryotes and algae, and aggregates of organic compounds. This discovery shows that microorganisms from saline depositional environments can remain well preserved in halite over hundreds of millions of years and can be detected in situ with optical methods alone. This study has implications for the search for life in both terrestrial and extraterrestrial chemical sedimentary rocks. |
| Researchers reveal the origin story for carbon-12, a building block for life Posted: 11 May 2022 07:27 AM PDT After running simulations on the world's most powerful supercomputer, an international team of researchers has developed a theory for the nuclear structure and origin of carbon-12, the stuff of life. The theory favors the production of carbon-12 in the cosmos. |
| DNA provides unique look at moa and climate change Posted: 11 May 2022 05:57 AM PDT Ancient moa DNA has provided insights into how species react to climate change, a new study has found. |
| Academic study of East African maritime traditions shows changes in boatbuilding Posted: 10 May 2022 12:15 PM PDT The first detailed academic study of East African maritime traditions shows changes in boatbuilding techniques but the continuing use of wooden vessels by fishers. |
| Fossil discovery reveals that trilobites had clasper-like limbs used for mating Posted: 10 May 2022 12:15 PM PDT Thanks to their easily fossilized exoskeleton, trilobites largely dominate the fossil record of early complex animal life. However, trilobite appendages and the anatomy of the underside of their body are typically not well preserved, which makes it difficult to infer their mating and reproductive behaviors. |
| Complex human childbirth and cognitive abilities a result of walking upright Posted: 10 May 2022 07:29 AM PDT Childbirth in humans is much more complex and painful than in great apes. It was long believed that this was a result of humans' larger brains and the narrow dimensions of the mother's pelvis. Researchers have now used 3D simulations to show that childbirth was also a highly complex process in early hominins that gave birth to relatively small-brained newborns -- with important implications for their cognitive development. |
| Bali-like temperatures in Wyoming? Fossils reveal tropically hot North America 95 million years ago Posted: 10 May 2022 07:28 AM PDT A new study that used fossil oyster shells as paleothermometers found the shallow sea that covered much of western North America 95 million years ago was as warm as today's tropics. |
| Newly discovered lake may hold secret to Antarctic ice sheet's rise and fall Posted: 09 May 2022 01:28 PM PDT Scientists investigating the underside of the world's largest ice sheet in East Antarctica have discovered a city-size lake whose sediments might answer questions about what Antarctica was like before it froze, how climate change has affected it over its history, and how the ice sheet might behave as the world warms. |
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