Fossil redefines mammal historyBreaking 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 whose kind evolved to provide nourishment to their unborn through a placenta.
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.
The journal carries a paper written by a team of palaeontologists led by Zhe-Xi Luo from the Carnegie Museum of Natural History, Pittsburgh, US.
It describes the fossil remains of an animal unearthed in China's northeast Liaoning Province, which has produced so many stunning fossils in recent years....
comments powered by Disqus
- Artist Corrects Inaccuracies At The George W. Bush Library With Augmented Reality
- “Unprecedented” discovery of mysterious structures created by Neanderthals
- This Man Spent 25 Years Documenting Every Day of Hitler's Life
- Anti-Gay, Pro-Creationism Birther Won’t Be Deciding What Textbooks Your Kids Read
- What About Us, Nagasaki Asks, as Obama’s Hiroshima Trip Nears
- David Lowenthal, author of "The Past Is a Foreign Country,” says it’s folly to scratch the names of slaveholders off buildings
- Jean Edward Smith, biographer of FDR and Ike, has a new biography coming out … of George W. Bush
- Flora Fraser, biographer of George and Martha Washington, wins $50,000 George Washington Prize
- Michael Cohen explains why he calls his book on 1968 “American Malestrom"
- Fredrik Logevall on Obama's Legacy