Natural Selection

Natural Selection

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Storyboard Text

  • Genetic Variation: There's two types of owls, half that strictly eat rodents and the other half that eat rodents, reptiles, and worms.
  • Overproduction and Selective Pressures: The time of reproduction is around the corner but food sources get way smaller than before leaving the half of owls that only eat rodents out of luck with reptiles being the only species in the area.
  • Differential Survival and Reproduction: Due to the food shortage, the owls that their diet depended on rodents died and/or moved to another place while the other half that eats rodents, reptiles, and worms stay and survive slowly declining in numbers also due to the food shortage
  • Changes in the Gene Pool: Due to the other half leaving and/or dying, the half of owls that diets consist of rodents, reptiles, and worms survive increasing their population size in that area more than the other half of owls that consumed only rodents but not by much also due to the food shortage.
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