Humans’ “Ancestral Homeland” Found, Claim Researchershttp://blogs.discovermagazine.com/deadthings/2019/10/28/humans-ancestral-homeland-found-claim-researchers/
Why did humans leave warm or temperate zones and migrate to colder climates?https://www.reddit.com/r/AskHistorians/comments/161ivs/why_did_humans_leave_warm_or_temperate_zones_and/