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On 2 Apr 2004 at 11:19, Joao Carvalho wrote: > So it > is very arbitrary to choose when an aggregate of human cells sould > start to be considered as a human being alive. Any biologist can agree > on this. Best, Joao Carvalho I wish that it were that simple, Joao. Having seen a 12-week fetus (removed from the uterus for therapeutic reasons) struggle for 15 minutes or so before dying makes a pretty strong impression towards the position that a fetus is a human being. As to the issue of "pre-implantation stem cells", there is room for legitimate discussion in that instance. My objections deal with "viable" fetuses, and the "viability" is changing very quickly these days. Best, Bob ********************************************** Robert A. Fink, M. D., F.A.C.S., P. C. 2500 Milvia Street Suite 222 Berkeley, California 94704-2636 Telephone: 510-849-2555 FAX: 510-849-2557 WWW: http://www.rafink.com/ mailto:[log in to unmask] "Ex Tristitia Virtus" ********************************************* ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn