I think people know what DNA is and a fly probably has the same amount. All kinds of companies are working hard to make better chemicals to extinguish the lives of billions of insects. Life begins at conception. I don't think so. Life is always present.
Life is everywhere.
Life hasn't stopped. Thou shall not kill. Male cats, wild and domestic, will kill cubs that aren't their own. Animals in the desert will eat their young if they have too many or are starving. This is a difficult subject.