This research is significant because it provides strong evidence that original biological molecules can survive in dinosaur fossils, challenging the long-held assumption that such compounds degrade over millions of years. Crucially…
Source: Proceedings of the National Academy of Sciences (PNAS) | Earth, Atmospheric and Planetary Sciences
Proceedings of the National Academy of Sciences (PNAS)
Topics: Earth, Atmospheric and Planetary Sciences- Heme signatures in mineralized red blood cells within vascular canals of a 115-million-year-old dinosaur bone
- Hydration at the base of the mantle transition zone by ancient subductions in Asia
- Direct atomic-scale observation reveals rare earth element fractionation at mineral–water interfaces
- Synchronous end-Permian mass extinction zenith in marine and low–middle latitude terrestrial North China
- Holocene millennial climate variability influenced by tropical–Antarctic ocean–atmosphere interactions
- Fine and ultrafine Martian dust presents additional risks for future crewed missions to Mars
- Position-specific isotope signatures evolve during a reversible reaction
- Global high rates of anaerobic methane oxidation at marine cold seeps recorded by isotope bonding in seep carbonates
- Mass-independent oxygen isotope fractionation driven by energetic-particle irradiation of icy solids
- In-cloud motions shape warm-rain production in marine clouds: Evidence from multiyear observations
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