Darwin’s theory of evolution is one of the most well-known and widely accepted scientific theories in the world. However, like all scientific theories, it is not without its flaws. In this article, we will explore two weaknesses with Darwin’s theory of evolution.


Charles Darwin’s theory of evolution is based on the idea that species change over time through a process called natural selection. According to Darwin, individuals with certain advantageous traits are more likely to survive and reproduce, passing those traits on to their offspring. Over time, these advantageous traits become more common in a population, leading to the formation of new species.

Weakness 1: Gaps in the Fossil Record

One weakness with Darwin’s theory is that there are gaps in the fossil record. While there are many examples of transitional fossils that show how one species evolved into another, there are also many gaps where we have no fossil evidence for what happened during certain periods of evolutionary history.

This lack of evidence makes it difficult to fully understand how some species evolved and makes it harder to test certain aspects of Darwin’s theory. Additionally, some critics argue that these gaps could be evidence against evolution altogether.

Weakness 2: Lack of Explanation for Complex Structures

Another weakness with Darwin’s theory is that it does not fully explain how complex structures like eyes or wings could have evolved through natural selection alone. According to traditional evolutionary theory, complex structures evolve through a series of small changes over time.

However, some critics argue that this explanation does not account for the fact that many complex structures require multiple components working together in a specific way to function properly. These critics suggest that it would be unlikely for all these components to evolve independently and then come together perfectly by chance.


While Darwin’s theory of evolution has been incredibly influential in shaping our understanding of the natural world, it is not perfect. The gaps in the fossil record and the lack of explanation for complex structures are just two weaknesses with this theory.

However, these weaknesses do not necessarily disprove evolution altogether. Instead, they highlight areas where further research and investigation are needed to fully understand the complexities of evolutionary processes.