Consider this thought experiment:
1. You would consider your parents as human right?
2. Their parents were human too right? i.e. your grandparents
3. Your grandparent’s parent’s were also human right?
4. And their’s, and their’s, and their’s, ….
5. Well if you keep on doing this for thousands upon thousands generations eventually we are in the year 5 million BCE. …
And wait there were no ‘humans’ this long ago!
So whence did people start becoming ‘human’?