Well, this thread has taken all kinds of interesting turns. At this point I personally don't mind if it goes a bit off topic. Like, the great Dane, I too wouldnt mind learning more about your theory on there being no difference between ending the life of an orange and a seal.
You are right about life being cells with an intended shape and form; but you are referring to the embryonic stage. When you eat food, be it an orange or a chicken their form has
already taken shape. I dont see it as cruel to kill something that hasnt developed beyond an unidentifiable mass of cells. But the seals and the oranges you are referring to have taken shape and are way beyond the painless embryonic stage.
Interesting you gave the definition of biology. I dont need it; trust me! I was a biology major so of course I know the meaning of the word. Im just not sure how the definition applies to your theory. I definitely learned a very different perspective than you did. Allow me to try to explain the difference between the two species you named so I can help you see the
clear and concise departure from picking and orange and clubbing a seal.
Plants and animals are both made up of eukaryotic cells. Beyond that, they are quite different at the cellular level! I'd like to see a seal photosynthesize! lol! Not many mammals have chloroplasts!

Also, the cells in an orange have cell walls; this gives them the strong rigid texture (cellulose) as opposed to critters in the animal kingdoms that only have cell membranes. That is why we are kind of mushy to the touch compared to lettuce which is more rigid. If a seal had a cell wall
well, that would be just plain silly! The poor thing wouldnt be able to get around very well at all! Lol! I realize that cellular biology is of little interest to most people, so Ill move on. I just wanted to point out that while what you said was true
that life is nothing more than dividing cells
that the dividing cells in questions are
tremendously different and lead to very diverse organisms!
Lets talk about neurology. Its really simple; seals have what is referred to as a nervous system. Through a complicated and intricate network of neurons, transmitters and other goofy little biological gadgets, seals can experience something that oranges cannot;
PAIN. It hurts if you club a seal, but since oranges do not have a central nervous system, they couldnt care less if you pluck them from a tree!
By the way, when you pick an orange, the orange tree doesnt die. When you club a seal over the head and skin it
.well, its dead. Just another little difference I thought Id throw out there. Compare it to humans; you can remove many things from the human body and it will still live...blood, spleen, a kidney, bone marrow, gall bladder, uterus, and various other organs. Removing those things do not make a person dead. In the same way, plucking an orange doens't kill the tree. You are not "ending its life."
The bottom line is, you are right. Life is about dividing cells. But that is a dramatic over simplification of the situation. It overlooks some fundamental differences between biological organisms and how they function. In mammals, that central nervous system makes a world of difference between them and plants. Plants dont feel pain, they dont bleed, they dont have feelings, they dont get scared, and they dont ache when their offspring are slaughtered before their very eyes.
And you are of course right that wild omnivores dont differentiate. But they do one thing very differently from humans;
they dont waste. They take what they need and if they have left overs another wild animal takes them. Humans waste a staggering amount of food which ultimately means way more animals are killed than necessary. We should only take what we need, but tons meat gets wasted in the process of obtaining, shipping and selling it. Most supermarkets throw away shameful amounts of food. And even in individual households, many people through out a LOT of food. I knew somebody who worked in a restaurant and she was always disgusted at how much food was thrown out. It's very sad. All this waste means more lost lives of innocent animals. In contrast, there is very little waste in the wild. Another thing that separates us from wild carnivores is our intelligence. We know that brutally killing other animals hurts. With the intelligence that we are given comes responsibility to treat other living beings in a humane manner.
Well, I tried! All this is just my opinion, of course. I'm always open to hearing new thoughts. Please, by all means, go on and expand on your theories. Id love to discuss this further.