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Million-year-old mammoth DNA breaks record for the most ancient genome Researchers have sequenced DNA from mammoth teeth that are estimated to be around 1.2 million years old, during the Early Pleistocene sub-epoch. The specimens were recovered from northeastern Siberian permafrost, and reveals a new lineage (similar to Steppe mammoths) that may be ancestral to Columbian mammoths from North America. In fact, genomic sequences indicate that a hybridisation event could have occurred between this lineage and one that gave rise to wooly mammoths, as the North American mammoths acquired roughly half of their DNA from each species. This finding has significantly increased our current understanding of the speciation and adaptive evolution of mammoths. Quick article: https://www.nature.com/articles/d41586-021-00436-x Paper: https://doi.org/10.1038/s41586-021-03224-9 |
Environmental policies are not always bad for busines Critics say that environmental policies are costly. In a recent analysis, researchers examined nearly 2700 environmental laws and regulations adopted by China between 2002 and 2013 and assessed their impact on the country’s GDP, industrial output and profits. They concluded that although command and control policies and non-monetary awards may decrease GDP, output and profits, incentive-based policies and monetary awards may boost the output and profits of some energy industries/sectors. However, it was also noted that the benefits that energy-related firms gain from the latter policies may come at a cost to other sectors. Nonetheless, environmental policies are essential for the future of our society and all life on our planet, and carefully designed policies can facilitate business. Quick article: https://www.sciencedaily.com/releases/2021/02/210222192825.htm Full paper: https://doi.org/10.1016/j.eneco.2020.105082 |