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And what makes this fine-tune usual is that the terasaur bones, they're thin. They tend to be thin and very lightweight, much like a bird, and that helps them in flight. So it's really rare from them to be preserved with as much detail as this one was seen with. And by using high-resolution CT scans, scientists revealed layers of different deafening minerals. The analysis showed a microbial activity that drove the preservation process, scarred biomarkers and collagen fiber patterns that tended to survive, stopping.