[Dilbert San Diego]

I had heard that the interbreeding of Neanderthals with Homo Sapiens caused the Neanderthals to die off.

[Harmless Teddy Bear]

It was like putting a drop of ink in a bucket of milk. They got diluted.

And the fact that a child with a homo sapiens sapiens father meant that the homo sapiens neanderthalensis mother and child had a better chance of living would have made them preferred mates leaving the homo sapiens neanderthalensis males out in the cold.