GETTING CLOSER TO WHEN LIFE BEGINS? (An asymptotic curve?)
There are points in evodevo where it’s more like an embryonic fish, than a delivered organism.
The genes in common with fish & with humans are active in the same way in either…identical.
Our skin and reptilian skin come from the same place…epigenomic timing is key. (Methylation)
There is a single discreet point where we cease being reptilian and shift to pure “human” ? It never really happens? A great number of these posts reflect the old mammalian brain function if not prior? (Partial familiarity with bits of outdated facts?)
SCIENCE avoids the places those kind of philosophical/theological speculations tend to go; the questions must admit to being “falsifiable”as a prerequisite.O:-)
Who’s more spiritual, Santa, or “GOD”? And what of viruses, prions curious bits of slime mold?
It’s NOT falsifiable, so not in the purview of science? 🙂