[net.abortion] When does it become the same animal?

cher@ihuxi.UUCP (Mike Musing) (08/25/84)

The title question is inspired by one of the P. Torek's postings.
At what precisely stage does the formation of cells become
a fetus? Or, when a zygote can be considered a fetus. 
The details might get too technical, but the philosophy
leading to the reply should be interesting.

Also: fetus in a tube is NOT going to become a baby if left alone.
Does it mean that it is not "the same animal" (the original posting
implied that as a criterium)?
                Me, I'm just curious.
                               Mike Musing