研究人员发现了一座规模庞大的古代玛雅城市 Researchers in Mexico have discovered a large, lost Mayan city.

研究：中国火星车发现火星上存在古代海洋的证据 Scientists say newly examined data from a Chinese explorer on Mars adds to existing evidence that the planet once had a very large ocean.

德国化石为古代飞行爬行动物提供新细节 Scientists say a fossil found in Germany is providing new details about flying reptiles that lived on Earth about 147 million years ago.

古人类足迹表明150万年前有两种人类物种在肯尼亚毗邻而居 Scientists say ancient footprints left in wet dirt on a Kenyan lakeside suggest that two early human ancestors were neighbors about 1.5 million years ago.

研究：古代美洲人严重依赖猛犸象作为食物 A new study finds that the first humans to live in North America depended heavily on mammoths and other large animals for food.

科学家利用古老基因估算人类与尼安德特人之间的接触 Scientists have used ancient genes to learn more details about contact between Neanderthals and humans tens of thousands of years ago.

研究人员利用激光研究古代秘鲁木乃伊 For more than 5,000 years, humans have covered themselves with permanent artistic designs known as tattoos.

研究人员在古庞贝城发现一处浴场建筑群 Archeological research has uncovered another treasure of the ancient Roman city of Pompeii: a large private bathhouse.

研究人员利用化学检测和人类嗅觉研究古代遗骸 A recent study about the smell of Egyptian mummies reached some surprising findings.