natural selection

     

Aaptation Genetic drift Gene flow Mutation Natural selection Speciation

Trivia about natural selection

  • (Alex reports from a field of flowers in the Galapagos Islands, Ecuador.) Specimens of finches from different parts of the Galapagos gave Darwin a deep insight into evolution; later, back home in England, he figured out its mechanism, this 2-word term
  • Darwin defined it as "preservation of favorable variations and the rejection of injurious variations"