Biology is something fantastic about which we only know a small part, always in a provisional way, since new instruments allow wider knowledge.
I explained Comparative Animal Physiology from 1965 to 2011, and I can affirm I learned and still continue to learn new things every day.
It’s very interesting, but it’s no longer explained. People specialize too soon and they don’t see things as a harmonious, interconnected whole.
Rafael Jordana