Adam s sin spread to men. This passage, cannot be used to support the concept that Adam s sin affected the animals. For the creation was subjected to frustration, not by its own choice, but by the will of the one who subjected it, in hope 21 that the creation itself will be liberated from its bondage to decay and brought into the glorious freedom of the children of God. We know that the whole creation has been groaning as in the pains of childbirth right up to the present time . The creation can groan even if it was not originally offering immortality to the animals.
Humans have an ability to destroy which surpasses anything else in the creation.
Creation groans even without immortality. One final item, it is illogical to believe that animals had immortality for several reasons. None of them could die, and there would be no need for replacements. Sex and reproduction were needless. The fact that God told the animals to reproduce strongly implies that they were going to need replacements, implying death was part of their natural state.