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 …

Oct 25, 2025 · evolution, theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the …

The definition Biological evolution, simply put, is descent with inherited modification. This definition encompasses everything from small-scale evolution (for example, changes in the …

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.

Evolutionary thought, the recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity. With the beginnings of …

Oct 25, 2025 · Biological evolution is the process of change and diversification of living things over time, and it affects all aspects of their lives— morphology (form and structure), …

2 days ago · Evolution, as related to genomics, refers to the process by which living organisms change over time through changes in the genome. Such evolutionary changes result from …

Learn how early humans evolved from Homo habilis, to Homo erectus, to Homo sapiens and developed basic survival tools. The story of human evolution began about 7 million years ago, …