Natural Selection

Natural Selection

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  • Most polar bears are born with white fur but 2 out of 5 of the bears are born with a mutation giving them brown fur. And this is called genetic variation.
  • Genetic Variation
  • Not being able to blend in with the snow the brown polar bear has problems hunting.
  • Why do they always see me coming
  • I see you.
  • I see you
  • Selective Pressure
  • They never see me 
  • I'm starving
  • Since the white furred polar bear can hunt and survive it is biologically fit and the brown one isn't.
  • I didn't get any you could've shared.
  • This fools gonna die soon
  • I had a whole feast today. I've never caught 2 seas in one go.
  • Maybe I'll get food tomorrow.
  • By: Gurjivan Johal
  • The polar bears with the mutation that causes them to have brown fur, are at higher risk of getting hunted by their predators because into the the snow like the white furred polar bears
  • We got food tonight
  • The brown furred polar bears slowly die off because they are easly spotted but the white ones are hard to spot so they will reproduce and pass its genes to its offspring
  • he dead
  • The mutated polar bears die off going extinct. The white polar bears are more biologically successful in reproducing and passing its genes of white fur to its offspring. 
  • The frequency of white polar bears increase over time.
  • Biological Success
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