to all concerned: By the soul we mean the source of the activity coming within all animated being, vegetable animal, and human Vegetative life is started by a seed which receives external stimuli, sun, water, and chemicals from earth. It grows, has a root system, it even heals itself if wounded, and creates more seed to propagate itself It’s life depends on mater, not spiritual.
Animal life also depends on seed, sperm and ovary. They need to get nourishment from all that grows, vegetables, grass, other animals that contain chemicals as protien. carbohydrates etc. They have the five senses generally. They have physical locomotion. Their life also depends on mater. they do what seems to be a spiritual intelligence, but it is instinctive, They don’t rationalize. They have what is called sense knowledge, I call them sophisticated biological computers (designed and programed by God) They propagate by their seed, sperm and ovary. Their life is dependent on mater. Their bodies can also heal themselves if injured. Once an animal always an animal They don’t evolve into humans.
Human life contains all the activities contained in vegetative life, and animal life. In human life their is also a spiritual activity called "thinking or rational life " there is also “voluntary life” The activity of the intellect with its dependence on the brain to remember sense impressions, and the ability to make a choice dependent on the intellect, this is called “will” these are called the spiritual faculties of the soul,and this is what makes humans a different species from animals. We have animality and rationality both in one human being. We are infused with a spiritual soul which makes us like God who is Pure Spirit
When humans propagate through marriage, they beget their own kind, that is a fact, they don’t beget animals, this is a self evident truth, and it goes without saying and shouldn’t have to be rationalized, Whether or not the human spiritual soul is infused immediately or not shouldn’t matter because God set the whole process in motion when two humans come together to propagate. Destroy the initial stage in the process is to go against God’s will. So it is justified morally to say the soul is infused at conception An animal can not give what it doesn’t have. If the baby eventually shows signs of spiritual intelligence (it can think, talk, laugh and cry) then from the start it is human. People try to justify taking the life of a child by rationalizing and avoiding self-evident truth. The baby is not a parasite, a mass of animal tissue and life. Jesus please "enlighten humanity inspite of ourselves, please!! Animals don’t evolve into humans, but humans can act like animals if they don’t act with rational intelligence. And this happens when we commit sin, we let our feelings and our passions dictate what we do, instead of our rational intelligence.