if a habitat can no longer support animals then those animals will move to another area
migratory_animal is animal. migratory_animal is not animal. if_animal is not in_danger_will_run_away. plains_animals is not animals. range_animal is not animal. if_animal is in_danger_will_run_away. zoo_animal is not captive_animal. domestic_animal is not animal. habitat is not environment. habitation is not habitat.