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Evolution | Definition, History, Types, Examples | Britannica 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 differences are due to modifications in successive generations
Evolution - Wikipedia 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 why organisms are adapted to their physical and biological environments
Theory of Evolution - Education 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 selection, organisms produce more offspring than are able to survive in their environment
An introduction to evolution 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
What is evolution? | Definition of evolution - YourGenome In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection The theory of evolution is based on the idea that all species are related and gradually change over time
evolution | Learn Science at Scitable - Nature 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
How Evolution Works - HowStuffWorks In this article, we will explore the theory of evolution and how it works We will also examine several important areas that show holes in the current theory -- places where scientific research will be working in the coming years in order to complete the theory
EVOLUTION Definition Meaning - Merriam-Webster Evolution is a process of continuous branching and diversification from common trunks This pattern of irreversible separation gives life's history its basic directionality