“There is a better reason for studying zoology than its possible ‘usefulness’, and the general likeableness of animals. This reason is that we animals are the most complicated and perfectly-designed pieces of machinery in the known universe. Put it like that, and it is hard to see why anybody studies anything else.” - Richard Dawkins
That sums it up for me - all man made creations and inventions seem completely flawed and fragile compared to any given living species. I can’t really explain it, but the natural world is what really matters - all other professions and studies of human things like law and accounting and English literature are brilliant and interesting but they seem so narrow and focused on just one species for the last 10,000 years or less. Zoology, but more broadly biology, is everything we know or don’t know, and everything that was here before we were here and will be here after we’re gone.
It’s just EVERYTHING.