Life around us is ever changing. If we were to time travel back a hundred thousand years, the many animals that we adore and love would not look the same. Dogs would not look the same. Cats would not look the same. Even plants like trees would not look the same. Why? The answer lies in evolution. In this episode, we will be exploring five major pieces of evidence that support the theory of evolution: artificial selection, intermediate forms, homologies, vestigial traits, and the hierarchical organization of life.