It seems like there's a misunderstanding in the question. The theory of natural selection IS supported by a vast body of evidence. It's not something that's "not supported."

Perhaps you're thinking of something else, or maybe the wording is slightly off. Could you rephrase your question?

Here are some possible interpretations of what you might be asking:

* Is there any evidence AGAINST the theory of natural selection? There are some specific areas of evolutionary biology where the exact mechanisms of natural selection are still debated, but the overall theory is extremely well-supported.

* Is there a different theory that better explains evolution? While alternative theories have been proposed in the past, none have gained the same level of scientific support as natural selection.

* Is the theory of natural selection flawed in some way? The theory has been refined over time as new evidence emerges, but it remains the cornerstone of our understanding of evolution.

Please clarify your question so I can give you a more accurate and helpful response.