The whole philosophy of modern times is to dissolve distinctions between individuals and deal with them as large collections of people. It's essentially self-interested on the part of authority.
A study of animal communities has this advantage: they are merely what they are, for anyone to see who will and can look clearly; they cannot complicate the picture by worded idealisms, by saying one thing and being another; here the struggle is unmasked and the beauty is unmasked.