Hi, thanks for the questions, I am Creationist.
first of all we have to observe that there is no "creationist theory" for what might be called a minor problem in a hypothesis.
My main answer is that biblical creationism explains that this is not a perfect system. Secondly, it follows that in a fallen world many problems will abound. Animals and humans are now subject to chance and death.
Rather than taking on a fallacy of association, we have to observe that all animals and humans share many traits. Logically this does not mean we are necessarily related.
It is called the
fallacy of the undistributed middle.
An example is to find something you share in common, and then fallaciously assign a causal link where no such link exists.
For example, certain animals might have blue eyes, does this mean I inherited my blue eyes from such organisms?