Each type of animal are appropriate for the environment. If it is in a bad environment, it may cause death, but if they are in a suitable environment, are living happily.
Each animal has a right to the environment is not the same. If it is not appropriate in an environment where it can cause death. But if you live in the right environment, they will live happily.
Each animal type is appropriate to the environment that are not the same. If it is in unfavorable environments may cause death. But if it is in the right environment will live happily.