And it's (for now) being replaced by relatively simple cultivated ecosystems. Food crops, trees, and livestock (which I gather includes farmed fish). Ultimatel

And it's (for now) being replaced by relatively simple cultivated ecosystems. Food crops, trees, and livestock (which I gather includes farmed fish). Ultimately, if we can manage it without collapse, that's all that will remain. Plus us and pets, I mean. And various pathogens, parasites, and so on.