BEIJING, Feb. 19 (Xinhua) — A new study provides evidence suggesting that the evolution of modern birds commenced much earlier than previously believed, predating the extinction of dinosaurs.
Publish
Tag: lineages
ECDC de-escalates 3 COVID-19 lineages from variants of concern list
Photo taken on Dec. 8, 2022 shows an exterior view of the headquarters of the European Centre for Disease Prevention and Control (ECDC) in Stockholm, Sweden. (Photo by Wei Xuechao/Xinhua)The Stockholm