Humans have always preferred living on coasts lines, and if the Neanderthals were similar to us, they lived on coasts as well. Usually the largest human cities are located near salt water.
Did the fish in their diet consist of freshwater fish, salt or both? If saltwater fish were in their diet, then that implies their were Neanderthal settlements on the Ice Age coast lines, which are far out to sea today.
[ It might also be noted that we have no idea whether we are looking at only Neanderthals who lived in the high country as hunter-gathers, but the bulk of Neanderthal could have lived in cities on the coasts - which are now under hundreds of feet of sea water.
Humans have always preferred living on coasts lines, and if the Neanderthals were similar to us, they lived on coasts as well. Usually the largest human cities are located near salt water.
Did the fish in their diet consist of freshwater fish, salt or both? If saltwater fish were in their diet, then that implies their were Neanderthal settlements on the Ice Age coast lines, which are far out to sea today. ]
Maybe the story about entire peoples perishing during the great flood is a reference to the Neadertals?