It does until something changes in some other animal.
Until then, man is unique and that uniqueness has to be accounted for.
The reason is that man has a soul and the rest of God's creatures do not (with the exception of Angels) Even if your unsubstantiated assertion is correct, it does not change the biological realities that have led to the classification of humans as animals. Biological classifications do not consider the presence or lack of a "soul". Taxonomic classifications are based purely upon observable physical traits of an organism. Even if humans have a "soul", as you claim, this does not mean that they are not biologically animals.
Well, you seem to want limit everything to biology, but man is more then flesh and blood.
You have to account for the human mind, which is more then simply the mechanical workings of the brain.
Now, where is your soul going to spend eternity? I do not know. Thus far I have not seen evidence for the existence of a soul. This question is not relevant to a discussion on biology or evolution.
Well, on the contrary, it is very relevant, since man is unique.
You are an individual that God sent His Son to die for so you could spend eternity with Him and not in hell.
He that believeth on the Son hath everlasting life, and he that believeth not shall not see life, but the wrath of God abideth on him. (Jn.3:36)
You have a soul and when you die it will exist somewhere,in either heaven or hell, the choice is yours, something else that makes us different then animals, free will.