Ancient ice core could help explain mysterious shift in Earth’s ice ages
创纪录的南极档案揭示了 100 万年前二氧化碳的急剧波动
Ancient squirrel poop from Arctic permafrost contains DNA from mammoths, bison, horses and big cats
对史前松鼠粪便进行分析,发现其中含有大量冰河时期野兽、植物、微生物和真菌的遗传物质。
6 Ancient Fish Older Than Dinosaurs That Are Still Swimming Today
这些古老的鱼类谱系在大规模灭绝、冰河时代和进化剧变中幸存下来。