[Tribune7]

Research indicates there may have been a time when exchange was so pervasive there was no easy way to define individuals.

OK, so your vote is that all life may not have come from a single cell.

What isn't hypothetical is the evidence that all known life on earth shares a common DNA lineage.

What is established is that all life has DNA -- whether it's a common lineage or not is hypothetical.

[js1138]

Denial is not going to work in a paternity suit.