If we knew exactly what animal life was like before the fall into sin and knew what nature was like before the law of entropy invaded it, we would already be living in heaven.
It seems we will continue to have problems with this classification and it may be because it comes under the heading of creation rather than preservation.
A creationist can embarrass an evolutionist by asking for a definition of species.
If leaders in the space program had at its beginning in the 1940s, pointed out the benefits to people on earth rather than emphasizing the search for proof of evolution in space, the program would have saved $100 billion in tax money and achieved greater results.
Scripture suggests that the elements in space were created for the benefit of earth, while evolution suggests that earth is an insignificant speck in vast space.
In the beginning of the human race there was no genetic load which would cause undesirable traits such as appear in offspring of marriages between relatives today.