The year is 2080, we solved the climate crisis, we solved the poverty crisis. You live in a pretty chill solarpunk utopia that is considerate, sustainably, just and generally safe. The few dangerous places out there are clearly labelled.
Choose one of those signs and explain why it is displayed where it is.
EDIT: for some reasons up/downvotes do not work for me here. Is anyone having similar problems?
Chaotic System:
Displayed in areas where breeding programs grew out of control, perhaps species in captivity broke out. These areas are totally reclaimed by nature and the ecosystem is incredibly delicate due to over/under population.
People are warned for nature's sake, diseases or other illnesses carried by people could cause devastating damage. Or there are new strains of diseases in these areas that are immune to vaccinations, superbacteria.
This could also apply to flora, not just fauna. Perhaps a fungus has run wild?
Fungi are more closely related to fauna than flora.
I know, I was just mentioning both of them to expand the options a bit. Wasn't going for 100% technical accuracy.