科学与健康|改写生命演化史！2025我国古生物学研究在多领域取得突破

Core Insights - China's paleontology research has made significant breakthroughs in various fields, rewriting the history of evolution and contributing to global research on the origins of life [1][3][4] Group 1: Evolutionary Discoveries - A new bird fossil named "Zhenghe Bamin Bird" was discovered in Fujian, pushing back the timeline for the emergence of modern bird body structures by nearly 20 million years, indicating that key evolutionary processes for birds began during the Jurassic period [1] - The "Chicago Specimen" of Archaeopteryx, discovered through collaboration between Chinese and American researchers, provides critical evidence for the evolution of skulls and flight adaptations during the transition from dinosaurs to birds [2] Group 2: Dinosaur and Mammal Evolution - The discovery of Wushi Wudinglong in Yunnan represents the oldest known sauropod dinosaur in East Asia, dating back approximately 200 million years, thus extending the fossil record of Chinese dinosaurs [3] - Research on two ancient fossils revealed new evidence regarding the evolution of jaw joints from reptiles to mammals, demonstrating that this evolutionary path was not singular [3] Group 3: Human Ancestry Research - The successful capture and sequencing of over a hundred ancient human genomes in Yunnan clarified the genetic contribution of the "ghost ancestors" to the Tibetan Plateau population [4] - Innovative methods in ancient protein and DNA analysis confirmed that a nearly complete human skull found in Harbin belongs to the Denisovans, providing a clearer understanding of this extinct human group [4] - Digital reconstruction of the skull of Hubei Yuncheng Man 2 revealed that it is an early representative of the Dragon Man lineage, significantly advancing the timeline for the divergence of modern humans and other hominins to around 1 million years ago [4]