Corrupted Forest

Corrupted forests are places in Infected Wind Era.

Cause
The World War between Sentoki and Damal spread horrible radiation across the land-- in which forests became highly toxic from them.

Fungi
Different highly poisonous fungi inhabit the Corrupted forests. They sprouted in 2781.

Insects and Arachnids
From the radiation and toxicity in the Corrupted forest, Insects and Arachnids became affected in 2782, in which they started to mutate and become abnormally huge.

Notable ones are:

-The slug Barrtarisk, an insect which makes hot material similar to tar that gives the ground nutrients.

-The whip spider Titan Rattler Arrowtail, an arachnid that secrets caustic venom and controls fungal growth.

-A harvestman Gravis Messorem Messe, an arachnid that creates pseudo-graves that when abandoned contribute to the mineral and nutrient cycles.

-The Corpakos, a bug that mimics sounds and uses materials around it to appear like a large species of animal, preferably birds as it can fly without giving away it's illusion.

Trivia

 * The Corrupted Forest is very similar to the Toxic Jungle/Polluted Sea in Nausicaa of the Valley of the Wind.