in the united states, campaigns have made people believe that wildfires are always bad for nature. this comes from the old belief that ecosystems grow towards a stable system, and disturbances like fires stop that, and destroy the harmony of nature. but we have since learned that in some areas, fire is needed to make the system work properly; fire also helps biodiversity of many habitats. the plants and animals in these habitats have adapted to protect themselves from fire, and sometimes must have fire to survive.