The concept of evolution has been around for centuries, but its acceptance as a scientific fact is still debated in some circles. One common point of confusion is whether it is referred to as the “law” or “theory” of evolution. Let’s take a closer look and explore what these terms mean.

Theory vs. Law

In the scientific community, the term “theory” refers to a well-substantiated explanation of a phenomenon that is based on empirical evidence and has undergone extensive testing. A theory provides a framework for understanding and explaining how something works. It can be modified or refined based on new evidence or insights, but it cannot be proven beyond any doubt.

On the other hand, a law is a statement that describes an observed phenomenon in nature that holds true under specific conditions and has been verified through repeated experiments. Laws are often expressed mathematically and can be used to make predictions about future events.

The Theory of Evolution

The theory of evolution is one of the most well-established theories in science. It explains how living organisms have changed over time through processes such as natural selection, genetic drift, and gene flow. The theory is based on extensive evidence from many different fields, including genetics, paleontology, comparative anatomy, and biogeography.

Despite its overwhelming support among scientists, some individuals still dispute the theory of evolution due to religious or ideological beliefs. However, it’s important to note that scientific theories are not matters of opinion or belief; they are based on empirical evidence and subject to rigorous testing.

The Law of Evolution

There is no such thing as the “law” of evolution because laws describe specific phenomena that can be expressed mathematically. Evolutionary processes occur through a combination of biological mechanisms that cannot be reduced to simple mathematical formulas.

It’s worth noting that some people may use the term “law” colloquially when referring to the theory of evolution. However, this usage is not scientifically accurate and can lead to misunderstandings about the nature of scientific theories.


In summary, the theory of evolution is a well-established scientific explanation for how living organisms have changed over time. It is based on extensive evidence from many different fields and has undergone rigorous testing.

The term “law” does not apply to evolutionary processes because they are too complex and multifaceted to be described by a simple mathematical formula. Understanding the difference between these terms is crucial for accurately communicating scientific concepts and avoiding misunderstandings.