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Fossilized dinosaur eggshells can preserve amino acids, the building blocks of proteins, over millions of years

  • Written by Evan Thomas Saitta, Postdoctoral Scholar in Paleontology, University of Chicago
Fossilized dinosaur eggshells can preserve amino acids, the building blocks of proteins, over millions of yearsA dinosaur eggshell cross section, as imaged under fluorescence microscopy. Evan Saitta

As a scientist, lab work can sometimes get monotonous. But in 2017, while a Ph.D. student of paleobiology at the University of Bristol in the U.K., I heard a gleeful exclamation from across the room. Kirsty Penkman, head of the North East Amino Acid Racemization...

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