1). Ice Age help people to migrate to different continents because Europe was much colder .
2). Our ancestors hunted and ate huge animals , like mamooths and woolly rhinoceroses.
3). The Neanderthals come from Africa . They left Africa 200,000 years ago , they started to migrate into Asia .
4). Because , the land bridge to North America disappeared . ( aici nu stiu sigur daca este bine )
