I mean, the bones that have been found of are not ape (we know what ape bones look like) and not modern human either.
Isn't it amazing to study the bones of our "cousins" I guess you'd call them - non Sapien hominids ( i.e. not human beings but humans of another species). You don't have to be an expert to see, wow it's so obvious, that these bones sure neither ape nor Homo Sapien, they are so radically different to either. Very quickly you learn to look for the common differences - the size of the brain case, the pelvis...you can quickly tell if they walked upright, the strange shape ape skulls have whereby they anchor the large cheek muscles required for chewing rough leaves and vegetation. But most of all, the teeth. It must be fascinating being a paleo-dentist ( I've just made up that name! Don't know their scientific designation). The teeth can tell you so much it's incredible. The small space behind the back molars that gets bigger the further back you go in time, until at some point it indicates another species.
When you put a chimp, Homo Sapien, Homo Neanderthalensis, Homo habilis, Homo Erectus, Australopithecus Africanus, Homo Heidelbergensis...all together, it is blatantly obvious we share common desce##- # nt. It is also obvious they are not our species but neither are they apes.
And, of course, they are all extinct - except us - why? Brains or braun? Time or unforeseen occurence.?.or bloody murder?