Well kiddo, evolution is the idea that living things change and develop over time through a process called natural selection. This means that some characteristics of an organism might be better suited to their environment than others, and those characteristics will help them survive and have babies with those same helpful traits.
But some religious groups might believe that everything in the world was created in a different way, like through a god or gods. So they might not agree with the idea of evolution and how it says that living things gradually change over time.
However, some religious groups have come to accept the idea of evolution, while still believing in their own religious beliefs. They might say that maybe their god or gods used evolution as a way to create the world and all the living things in it. They might also say that studying and understanding evolution can help us appreciate the world and all its amazing diversity even more.
So even though some religious groups might not believe in evolution, others have found a way to incorporate it into their beliefs and appreciate the amazing natural world around us.