Posts tagged ‘mutation’

June 29th, 2012

Neo-Darwinism

by Max Andrews

Evolution has many meanings.

  • Change over time
    • Evolution of the cosmos
    • Evolution of living things
    • Evolution of culture, technology, etc.
  • Changes within existing species
    • Morphological (anatomical)
    • Genetic (change in gene frequencies)
  • Common ancestry
    • Within a species
    • Descent of all species from a common ancestor
  • Darwinian evolution

Darwinism: Descent with modification through unguided processes

  • Descent:  “I view all beings not as special creations, but as the lineal descendants of some few beings which lived long ago.”
  • Modification:  “The preservation of favorable individual differences of variations, and the destruction of those which are injurious (natural selection).”
  • Unguided processes:  “There seems to be no more design in the variability of organic beings, and in the action of natural selection, than in the course which the wind blows. So I am inclined to look at everything as resulting from designed laws, with the details, whether good or bad, left to the working out of chance.”
    read more »