Nine, now one, species of us. We've begun to realise most likely there are more, not less.
Still, we've never been many within the millions named or unknown,
and that should be humbling.
Of the six editions of Darwin's Origin of Species, I find the final closing paragraph of the first most touching:
There
is grandeur in this view of life, with its several powers, having been
originally breathed into a few forms or into one; and that, whilst this
planet has gone cycling on according to the fixed law of gravity, from
so simple a beginning endless forms most beautiful and most wonderful
have been, and are being, evolved.