Ancient T. Rex Genes Decoded
Researchers have decoded genetic material from a 68 million-year-old Tyrannosaurus rex, an unprecedented step once thought impossible.
"The door just opens up to a whole avenue of research that involves anything extinct," said Matthew T. Carrano, curator of dinosaurs at the Smithsonian's National Museum of Natural History.
And, the new finding adds weight to the idea that today's birds are descendants of dinosaurs.
While dinosaur bones have long been studied, "it's always been assumed that preservation does not extend to the cellular or molecular level," said Mary Higby Schweitzer of North Carolina State University.
It had been thought that some proteins could last a million years or more, but not to the age of the dinosaurs, she said.
So, when she was able to recover soft tissue from a T. rex bone found in Montana in 2003 she was surprised, Schweitzer said.
And now, researchers led by John M. Asara of Beth Israel Deaconess Medical Center in Boston have been able to analyze proteins from that bone.
What Asara's team found was collagen, a type of fibrous connective tissue that is a major component of bone. And the closest match in creatures alive today was collagen from chicken bones.
Schweitzer and Asara report their findings in Friday's issue of the journal Science.
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Uhhm I saw the other T Rex thread going but this one has a no Photoshop policy.... ok a no bad photoshopped pic policy lol.