The theory states that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and …

Oct 14, 2022 · In his book, Darwin describes how organisms evolve over generations through the inheritance of physical or behavioral traits, as National Geographic explains. The theory starts …

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 …

Dec 9, 2025 · Darwinism, theory of the evolutionary mechanism propounded by Charles Darwin as an explanation of organic change. It denotes Darwin’s specific view that evolution is driven …

Apr 13, 2025 · Although the idea that life evolves wasn’t entirely new in the 19th century, it was Charles Darwin who transformed it into a scientific theory. In 1859, he published On the Origin …

Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor. The mechanism that Darwin …

The theory, first proposed by Charles Darwin in his 1859 book On the Origin of Species, explains how populations of living organisms change over time through the process of natural selection.

May 14, 2025 · Dive deep into Charles Darwin's revolutionary theory of evolution by natural selection. This comprehensive guide breaks down its fundamental concepts, historical context, …

Aug 13, 2004 · Darwinism designates a distinctive form of evolutionary explanation for the history and diversity of life on earth. Its original formulation is provided in the first edition of On the …

But in the mid-1800s, Darwin and the British biologist Alfred Russel Wallace independently conceived of a natural, even observable, way for life to change: a process Darwin called …