I knew it. Dismissing the possibility of Neanderthal and modern humans interbreeding seemed like saying the continents didn't fit together before plate tectonics proved they did. Just announced: Bones found decades ago in Romania dating back 30,000 years were re-examined. The result--the Homo sapien bones had features only possible if the female had Neanderthal lineage.
It makes one wonder what gems of possibility lurk in the Smithsonian, gathering dust in boxes, or preserved in a laboratory somewhere in the world, that may one day solve even the toughest of technology or medical challenges.
Hats off to scientists and engineers who continue to search in every corner of the future and the past. Neanderthal/Homo sapien interbreeding is another lesson that nothing is impossible, just not yet proven.