Researchers from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences studied over 1,000 fossilized dinosaur eggs and eggshells from the Shanyang Basin in central China. They found evidence to support the hypothesis that dinosaurs were not very diverse before their extinction and had declined overall during the last part of the Cretaceous period. Their findings were published in PNAS on Sept. 19 and may have resulted from global climate fluctuations and massive volcanic eruptions.Read Long Article
