In a cool new story from the ScienceNews webpage, Charlotte Lindqvist (University at Buffalo) and 13 colleagues have just published a paper in the Proceedings of the National Academy of Sciences that places the age of the oldest polar bear remains ever described at between 110,000 and 130,000 years. Using mitochondrial DNA extracted from a tooth of a bear jawbone found on Svalbard Island in 2004, the researchers were able to confirm that the jaw belonged to a polar bear. The work sheds light on the antiquity of the polar bear genome and the potential processes that originally restricted gene flow from their brown bear ancestors.
- Liberal pantywaist Barry Goldwater: twitter.com/handi817/statu… 4 hours ago
- RT @EcoLog_L: [ECOLOG-L] PhD position: Tree-insect interaction networks in an international tree diversity experiment https://t.co/Mm0lUxKX… 4 hours ago
- I like getting real about roaring, and infrasound is an obvious hypothesis. Imma mix a bittern and an alligator, ho… twitter.com/i/web/status/9… 4 hours ago
- RT @ClaytonTLamb: nationalpost.com/news/world/off… 4 hours ago
- RT @EcoLog_L: [ECOLOG-L] Scientist-In-Residence position open at Hayground School dlvr.it/Q5M1QQ 5 hours ago
- 236,096 hits