The scientific theory of evolution by natural selection was conceived independently by two British naturalists, Charles Darwin and Alfred Russel Wallace, in the mid-19th century as an …

Dec 31, 2025 · Evolution, theory in biology postulating that the various types of living things on Earth have their origin in other preexisting types and that the distinguishable differences are …

Evolution helps us to understand the living world around us, as well as its history. Biological evolution is not simply a matter of change over time.

Dec 31, 2025 · The Top Human Evolution Discoveries of 2025, From the Intriguing Neanderthal Diet to the Oldest Western European Face Fossil Smithsonian paleoanthropologists examine …

Apr 28, 2025 · Evolution explains how microscopic single-celled organisms eventually gave rise to the vibrant explosion of life we see today. It tells us how species adapt, survive, diverge, and …

Learn all about the history of life with these resources and articles on natural selection, genetics, cell types, Charles Darwin, and more.

Evolution is the principal scientific theory that biologists use to understand life and is used in many disciplines, including medicine, psychology, conservation biology, anthropology, forensics, …

Dec 31, 2025 · Darwin accumulated evidence showing that evolution had occurred, that diverse organisms share common ancestors, and that living beings have changed drastically over the …

Evolution is a process that results in changes in the genetic content of a population over time. There are two general classes of evolutionary change: microevolution and macroevolution.

An introduction to evolution: what is evolution and how does it work? Home → Learn Evolution. Evo in the News: Is this iguana an invader? Evolution has answers.