Posthumans

No, I don't think so. Homonids can't photosynthesize, and they can't decompose dead tissue, and they can't fix nitrogen, and they would make poor pollinators, and they can't breathe underwater.

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>>8245904
Meant more in terms of animal life, but ok.

>>8245924
There are many humanoids currently in existence.
However only one will be dominant and most likely (almost) genocide the others.

Please take your underage monster fantasies to the appropriate board.

>>8245924

Then still no, because of arthropods, platyhelminths, and other worms.

>>8245890
Humans... Can you define that more?

I found closed ecosystems of bacteria for example... ...

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>>8245933
More along the lines of megafauna and the like. Human microfauna would be a bit hard to produce, but not impossible.

Are Black people a separate sub species?

>>8245890
By the time they've speciated they wouldn't be humans anymore, would they? This isn't anything new. The same thing happened with the first vertebrate on land for example.

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>>8246071
They'd probably be considered humans in the same way that humans are considered apes. It would be more of a broad term that includes all species described.

>>8245890
Probably, but you'd have to ensure reproductive isolation for a long enough period. Look back into history where multiple hominid species existed simultaneously.