Natural Selection - Birds


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  • Alan T. Period 8 Natural Selection - Birds
  • On the Galapagos Islands, there was a species of birds that had different colored beaks. Most of the species had brown and grey beaks, while few had bright, vivid, red beaks.
  • The females were more attracted the birds that had red beaks over the ones that had brown or grey beaks. That allowed birds with red beaks to have a higher chance of mating.
  • Eventually, the birds that had brown and grey beaks no longer mated as much as the ones with red beaks, and started to die.
  • As time progressed, the red beaked birds were able to survive by mating.  They passed on their traits to their babies,  allowing them to survive and reproduce as well.
  • After years and years of reproduction, the Galapagos Islands were inhabited by birds that had red beaks.
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