#Evolution refers to change in a biological population's inherited traits from generation to generation. All species on Earth originated by the mechanism of evolution, through descent from common ancestors. Evolution occurs as changes accumulate over generations. Charles Darwin recognized evolution by natural selection, also called "descent with modification", as the fundamental process underlying all of life, whether viewed at a large scale above the level of species (#macroevolution — in terms of formation of new species, changes within lineages, and extinction), or at a small scale within a species (#microevolution — in terms of change in gene frequency). In a nutshell, evolution by natural selection can be simplified to the following principles: 1) Variability 2) Differential Fitness 3) Heredity

#commondescent #naturalselection #charlesdarwin #RationalWiki
https://rationalwiki.org/wiki/Evolution

Common descent is the scientific theory that all living organisms on Earth descend from a common ancestor. Although evolution had been suggested as far back as Ancient Greece, the first proponent of common descent appears to have been Erasmus Darwin, the grandfather of Charles Darwin. Biologists have evidence that all life developed from a common ancestor that lived just under 4 billion years ago…

#evolution #RationalWiki #commondescent #erasmusdarwin #treeoflife
https://rationalwiki.org/wiki/Common_descent