I love how this blogger really gets into looking at this issue from various angles.

the Way?

Difficult issues series

Ultrasound

We have seen (Who were the first human beings?) that it is difficult, perhaps impossible, to say when in natural history the first human beings existed. Quite possibly it was a gradual process over thousands of years.

This leads on to a related question: when in the process of sexual reproduction does human life begin?

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