Wildlife is affected from your spread of chemicals. The brazilan animals don't get an option on meals is they choose. They have consume the food that keeps growing where they live. An outrageous animal that live where chemicals have been applied have to eat the chemicals. Once consumed systems eventually pile up in the brazilan animals bodies and consequently takes a toll on the brazilan animals that have consumed the chemicals. Organic gardens use no chemicals therefore the wildlife doesn't have any ill effects from a natural garden.