What natural changes took place on the Earth about 100 thousand years ago? How has the animal kingdom changed?

What natural changes took place on the Earth about 100 thousand years ago? How has the animal kingdom changed? What new tools and weapons did man invent? What is called a clan community?

About 100 thousand years ago, there was a strong cooling on the Earth. A glacier was advancing from the north into Europe and Asia. In these new natural conditions, man survived because he learned to use fire, dig dugouts, mastered caves, and began to sew clothes. The animal kingdom has changed too. Smaller animals appeared, which were more difficult to hunt. Therefore, man invented a bow and arrow. And also people have become clan communities, that is, collectives of relatives who have everything in common.

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