How did Homo sapiens outlive homo neanderthals?

[Mr_Curiosity]

From what I understand an early group of neanderthal ancestors left africa and then evolved in europe to live in the cold conditions. Then our ancestors left africa the same way to find neanderthals in europe, who are similar but have different characteristics and features.

So how did neanderthals get beaten by the new kids on the block?

Oh and BONUS QUESTION....

What's the story about homo erectus? (in a nutshell)

 

[JackBond]

Uh? There's only ever been homo sapiens.

Africans lived in Africa since the flood until they were shipped in as slaves to Europeans and early Americans.

 

[AlFresco]

The BBC screened an excellent documentary which included the question you raise (see links). Unfortunately, the programme is no longer available on the BBC, but book / DVD are available from Amazon.
There may some evidence that Neanderthals interbred with the 'new kids on the block'
You may find the links of interest.