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 2, 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.

Oct 19, 2023 · Darwin and a scientific contemporary of his, Alfred Russel Wallace, proposed that evolution occurs because of a phenomenon called natural selection. In the theory of natural …

Apr 13, 2025 · But evolution is more than just biology’s guiding principle; it’s a story about time, change, and survival. Although the idea that life evolves wasn’t entirely new in the 19th …

Evolution is a process of continuous branching and diversification from common trunks. This pattern of irreversible separation gives life's history its basic directionality.

Because the definition of evolution is change in the heritable characteristics of a population over generations, evolution can occur by means other than natural selection.

Dec 11, 2025 · Human evolution, the process by which human beings developed on Earth from now-extinct primates. The only extant members of the human tribe, Hominini, belong to the …

Nov 29, 2025 · An introduction to evolution: what is evolution and how does it work? Is this iguana an invader? Evolution has answers. The vine twining on the fence, the insect crawling over the …

Independently, they came to the same conclusion: over generations, natural selection of inherited traits could give rise to new species. In the mid-1800s, Charles Darwin famously described …