NANJING, Nov. 17 (Xinhua) -- The Baojia site in the city of Liyang, east China's Jiangsu Province, has been confirmed to date back 7,500 to 8,100 years, making it the earliest known prehistoric site ...

Prehistoric marine predator discovered in Morocco Ozone hole: Why Antarctic wildlife is being 'sunburnt' 臭氧层空洞：为什么南极动植物被 “晒伤” 了？ Episode 240520 / 20 May 2024 Why is Antarctic wildlife being 'sunburnt' ...