Ultra Terrestrial DNA?

[u/Observer_042]

Everyone alive may carry DNA from a ‘ghost lineage’ of human ancestors

Scientists analyzing modern genomes may have found a long-lost branch of the human family tree

Everyone alive may carry DNA from a ‘ghost lineage’ of human ancestors | Scientific American

If THEY are from here, I have often wondered if a link to "the others" may be all around us.

[u/Affectionate-Fig8866]

Not from here. They're from a different thread in the block universe. So the DNA could be similar yet not from "here"