They Used Proteins From A Tooth
As a result, a new group of scientists from the University of Copenhagen and the National Research Center on Human Evolution in Spain took a fresh look at the fossilized bones of Homo antecessor. They didn’t compare fossil morphologies or apparent looks this time; instead, they used protein from a single preserved tooth.
They Used Palaeoproteomics Technique
The experts used a technique called palaeoproteomics, often known as mass spectrometry, that the University of Copenhagen had developed. This allowed them to extract even the tiniest bit of molecular evidence from the 800,000-year-old tooth, which might be used to link or unlink ancient human species.