what was one weakness of Darwin’s theory of evolution by natural selection??
You can find some supposed weaknesses of Darwinism here, but don't believe everything you read:
http://www.strengthsandweaknesses.org/Weaknesses/essential_weaknesses.htm
One perceived weakness of Darwin's theory of evolution by natural selection is the debate around the existence of "missing links" in the fossil record. Some critics argue that the fossil record does not provide clear transitional forms between different species, making it difficult to support the idea of gradual changes over time.
To explore this question further, I recommend examining reputable scientific sources and scholarly articles that discuss the issue of missing links in the fossil record. You can use search engines like Google Scholar to find relevant research papers and articles from renowned scientific journals. This will allow you to gather information from experts in the field and make an informed analysis of the strengths and weaknesses of Darwin's theory.