Rustorbs

The rustorbs split from its ancestor and shrank in size due to a lack of competition in the surrounding areas. Forming vast sheets over any available surface, they do not necessarily require iron oxide to survive but use it to blend in with their surroundings. Their small size and sedentary life style allows them to survive by photosynthesis alone.

During months of extreme warmth, the rustorb populations will boom, and coincidentally the high amounts of rust released from their dead can poison species who are not adapted to it. These rust tides usually only occur within the temperate zone.