> If you can get it to work, it > looks like a great teaching tool. it worked for me but I had to be very patient ( I have an extremely slow modem connection). > I have seen photos on various sites of > blastocysts and they look like cells to me. Thatīs all a blastula is, a bunch of cells. What they use is between 7-11 days I think Maryse ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn