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 explanation for …

Dec 2, 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 distinguishable …

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 …

Darwin published his theory of evolution in On the Origin of Species (1859), with carefully reasoned evidence to support this theory that all life on earth evolved from a common ancestor.

Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in...

Mar 26, 2024 · Evolution is one of the fundamental concepts in biology, describing the process by which organisms change over time through variations in their genetic material. This process shapes the …

Dec 2, 2025 · Evolution can be seen as a two-step process. First, hereditary variation takes place; second, selection is made of those genetic variants that will be passed on most effectively to the …

Nov 29, 2025 · Evolution has answers. The vine twining on the fence, the insect crawling over the sidewalk, and the flock of birds wheeling in the sky might look perfectly at home, flourishing …

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, …