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Snemalna Knjiga Besedilo

  • Three variants of rats are populated on a desert island in the middle of the Atlantic Ocean.
  • Many marine birds like to prey on the rats on the island.
  • Over time, the black and white rats are lunch for the marine birds because they are easily seen.
  • The brown birds are able to survive because they can camouflage with the sand on the island.
  • The black and white rats quickly die off and only brown rate remain.
  • The brown rats are able to reproduce because they could survive the predation. This is an example of stabilizing selection because the intermediate phenotype prevails.
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