T. Rex Proteins Again

The Scientific Method in action.  Repeating the previous experiment supports the results: proteins isolated from a T. Rex fossil appear genuine.

Reexamination of T. rex verifies disputed biochemical remains

The scientists describe reanalysis of the T. rex data and also report finding evidence of substances found in collagen. "In summary, we find nothing obviously wrong with the Tyrannosaurus rex [analysis from 2007]," the report states. "The identified peptides seem consistent with a sample containing old, quite possibly very ancient, bird-like bone, contaminated with only fairly explicable proteins. Hemoglobin and collagen are plausible proteins to find in fossil bone, because they are two of the most abundant proteins in bone and bone marrow."