Answer:
10 million
Explanation:
The Paleolithic Era is also known as the old stone age is a very long period on human pre-history, that covers from near 2.6 million years ago, to 10,000 BC, the end of that era is marked by a warmth in the global climate whcihc brought nomad tribes to become settlers initiating the first modern civilizations. The estimated population was 10 million of homosapiens, by the end of this time all of the other hominids had become extinct and only homo sapiens lived on earth.