The simple answer to the question of why Neanderthals became extinct is 'nobody knows,' but studies like this one certainly move us a lot closer to being able to make more clearly testable hypotheses. Now the hypothesis that Neanderthals became extinct because they were ineffective hunters is in deep trouble.
Quotes about neanderthals (5 Quotes)
One of the most important discoveries from studying ancient mitochondrial DNA is the estimate of when humans diverged in evolution from the Neanderthals - around half a million years ago,
extremely compelling evidence that the time it took Neanderthals to grow their teeth is broadly similar to that for modern human populations.
Neanderthals are three times as different from us as we all are from each other,
There was no difference between what Neanderthals and modern humans could do as hunters. Both of them were wolves with knives.