霸王龙骨骼中发现的血管正在改写恐龙科学
恐龙 DNA 可能仍然遥不可及，但科学家们正在发现一些几乎同样令人兴奋的东西——隐藏在化石骨骼中的古代血管。在一只绰号为“斯科蒂”的巨大霸王龙中，研究人员发现了一个保存完好的网络……
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来源: Science Daily
Dinosaur DNA may still be out of reach, but scientists are uncovering something almost as exciting—ancient blood vessels hidden inside fossilized bones. In a massive Tyrannosaurus rex nicknamed Scotty, researchers discovered a network of preserved vessels within a rib that once fractured and began healing 66 million years ago. Using powerful synchrotron X-rays from particle accelerators, they were able to peer inside the dense fossil without damaging it, revealing intricate, iron-rich structures left behind by the healing process.
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