Evolution
Evolution is the process by which populations of organisms change over successive generations through genetic variation and natural selection, forming the foundational theory of modern biology.
Explaining the extraordinary diversity of life on Earth through a single elegant mechanism operating over vast timescales, this theory remains the unifying foundation underlying all of modern biological science.
Change Over Successive Generations
Evolution describes how populations of organisms change over successive generations through genetic variation, a process operating continuously across all living species.
Driven by Natural Selection
Evolution occurs primarily through natural selection, in which organisms with traits better suited to their environment are more likely to survive and reproduce.
Supported by Overwhelming Evidence
Evolution is supported by overwhelming evidence from multiple scientific fields, including genetics, paleontology, and comparative anatomy.
The Foundation of Modern Biology
Evolution serves as the unifying theoretical foundation for essentially all of modern biological science, explaining the diversity and interconnection of life on Earth.