Human Migration and Population

After researching Human migration and population I came across several interesting facts that I was not familiar with.One includes the migration from Africa and the Idea that most humans originated from Africa until about 60,000 years ago. I read more about this and learned that the reason behind humans living in Africa had to do a lot with climate. The reason many migrated from Africa thousands of years ago is not 100% certain but scientist and researchers think it was because strong climate shifts and it was around the time period of the last bad ice age.