How monkeys handle moral outrage

It is believed the Neandertal species didn't have the ability the speak as well as homo sapiens and that may be one of the main reasons they didn't make into today's world. (Imagine how the NFL would look if they had!)

No not because of their NFL potential... but because that couldn't cut it in baseball.

Neanderthalis couldn't effectively throw overhand. They couldn't displace their shoulder. Modern humans had better ranged weapons, and more than one Neanderthal rib cage has been found with damage consistent with a thrown spear.

But they were advanced other than that; they had dyes, glue, jewelry, and buried their dead with tokens of remembrance.

I wasn't aware of their inability to throw overhand. Nearly every drawing of a Neandertal shows him with a spear. If they aren't throwing the spear then they are mostly likely hunting by ambushing a herd and running them into spears.

In a similar vein, some of the pygmy tribes would bury spears along the larger animal's pathways and then scare the animal into following a known path. I bring this up because the pygmy's (possible) inability able to throw a heavy spear may have led to a different method of predation.

I also understand the relative sophistication of the Homo neanderthalensis and it probably paralleled Homo sapien growth in sophistication.

I would like to have a good explanation of why this species failed to thrive.

Nearly every drawing of a Neandertal shows him with a spear. If they aren't throwing the spear then they are mostly likely hunting by ambushing a herd and running them into spears.

Right you are. They did use hand held heavy spears, but evidence seems to show that they did not commonly throw them. They usually cornered creatures and went hand to hand. They had the build to do it, and many skeletons show breaks and wounds that they lived with long term. Rough & tumble life.

One really interesting location has a Neander settlement that was used for thousands of years with a gently sloping upwards hill with a sudden cliff drop off. Huge mounds of bones and fire pits at the base of the cliff, where they drove the animals up and over the cliff, dropping to their deaths to be the main course at a feast at the bottom.

But many neander villages were near the sea-side, and it seems that they traveled to Europe following the shore, and clubbing seals and shellfish for easy pickings.