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Latest Stephan C. Schuster Stories

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2010-03-01 15:46:28

Researchers sequence the oldest ancient genome to date from a mammal A rare, ancient polar bear fossil discovered in Norway in 2004 is yielding a treasure trove of essential information about the age and evolutionary origins of the species whose future is now seen as synonymous with the devastation wrought by climate change. A paper published in the current issue of the Proceedings of the National Academy of Sciences by researchers at Penn State University, the University at Buffalo, the...

2008-06-10 17:09:35

Two genetically distinct groups of woolly mammoths once roamed northern Siberia, a new study suggests, with one group dying out long before humans showed up. The finding suggests humans were not the only reason for the beasts' demise, as some have suggested. Scientists had long thought that woolly mammoths were one large homogeneous group, but an international group of scientists studied the mitochondrial DNA - the DNA in the genes of the mitochondria structures within cells - to paint a...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.