n.更新世

The Pleistocene epoch saw the rise of megafauna in North America, such as mammoths and saber-toothed cats.
冰河时期见证了北美大型哺乳动物的兴起，如猛犸象和剑齿虎。
During the Pleistocene, ice ages repeatedly covered much of Europe with thick glaciers.
在上新世期间，欧洲多次被厚厚的冰川覆盖。
Fossil records from the Pleistocene show a dramatic decline in plant diversity due to climate fluctuations.
来自上新世的化石记录显示，由于气候变化，植物多样性急剧下降。
The cave paintings found in the Lascaux caves date back to the Upper Paleolithic and later the Pleistocene era.
拉斯科洞穴中发现的壁画追溯到旧石器晚期及上新世。
The Pleistocene is known for its glacial-interglacial cycles, with periods of intense cold followed by warmer intervals.
上新世以其冰期间歇期而闻名，即寒冷期与温暖期交替出现。
Human populations expanded and migrated across the globe during the late Pleistocene, contributing to the development of diverse cultures.
在晚更新世，人类种群在全球范围内扩张和迁移，促进了多元文化的形成。
Many species that we still see today, like elephants and rhinos, survived the Pleistocene and adapted to changing environments.
许多我们今天仍然看到的物种，如大象和犀牛，在上新世存活下来，并适应了不断变化的环境。
Paleontologists study the Pleistocene to understand how Earth's climate and ecosystems have changed over time.
古生物学家研究上新世以了解地球气候和生态系统是如何随时间演变的。
The extinction of megafauna in Australia occurred around the end of the Pleistocene, likely due to human colonization and climate change.
大型动物在澳大利亚的灭绝发生在上新世末期，可能与人类殖民和气候变化有关。
Archaeological evidence suggests that humans were present in the Americas during the early Pleistocene, although their exact timeline remains debated.
考古学证据表明，人类在早更新世可能已经存在于美洲，但具体的时间线仍有争议。