But in 2007, intact protein was extracted from the collagen of a Tyrannosaurus rex femur, more than 68 millions years old,and subsequent comparison to protein in the bone collagen of chickens helped confirme than modern birds are indeed descended from dinosaurs.
In contrast to the Diseny-like view of the emperor penguins, we should see them for what they really are : the stressed and brutalized victors of the largest and most vicious game of survivor in the past 60 millions years.