But they sung a fine supranno due to the way their vocal cords were placed in relationship to their skulls.
Not that scary - they may have looked mean (in those renderings by some “artist”) but they were likely pussy cats in person.
They had their strengths and weaknesses. Having an 8” fur coat for instance meant they’d have to be more careful of fire than our own ancestors needed to be, i.e. it wouldn’t have been that hard for a Cro Magnon with a torch to light one of them up...