Fossil redefines mammal history

posted by
August 25, 2011
BBC News [UK]    
Posted in News, PND News

"A small, 160-million-year-old Chinese fossil has something big to say about the emergence of mammals on Earth. The shrew-like creature is the earliest known example of an animal that used a placenta to provide nourishment to their unborn young. Its features clearly set it apart from marsupial mammals, which adopt a very different reproductive strategy. The discovery pushes back the date the two groups took up their separate lines, according to Nature magazine." [editor's note: See there, Perry is right; we didn't descend from monkeys! - SAT] (08/25/11)

http://www.bbc.co.uk/news/science-environment-14651218  

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