The Origin of Species

• On the Origin of Species

  Book published in 1859 by Darwin and Wallace
• On the Origin of Species published

  1859
• Natural Selection


  The way nature favours the reproductive success of some individuals within a population over others
• "Survival of the Fittest"


  Phrase used by Herbert Spencer describing the process of natural selection
• Adaptation


  Characteristic or feature of a species that makes it well suited for survival or reproductive success in its environment
• Darwin's Finches


  • Because the food source was limited to medium-large-sized seeds, the finches that were able to adapt for their needs were the ones that had little or no competition for food; resulting in higher survival rates and reproduction success
• Camouflage


  • Seasonal camouflage where species can change the colour of their fur to blend in with their surroundings
  • Chromatophore cells change the colour of the species skin quickly to hide from predators