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Animal Adaptations. The Big Question. This past Sunday…. I went to an animal hospital because my bunny was sick. . Alfred Russel Wallace. -British explorer and scientist. His Question (1858). Question : How do animals change???

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animal adaptations

Animal Adaptations

The Big Question

this past sunday
This past Sunday…
  • I went to an animal hospital because my bunny was sick. 
alfred russel wallace
Alfred Russel Wallace

-British explorer and scientist

his question 1858
His Question (1858)
  • Question: How do animals change???
  • Answer: On the whole, the best fitted live and pass down their genes.
survival of the fittest
Survival of the Fittest
  • Survive:
    • To go on living, to not die
survival of the fittest2
Survival of the Fittest
  • Fit:
    • In good health, in good shape
survival of the fittest3
Survival of the Fittest
  • The best fitted will live.
    • The healthiest animals survive from disease.
    • The fastest animals survive from being eaten.
ok so how do animals change
OK… So, how do animals change?
  • Long, long time ago, giraffes had shorter necks.
  • There was too much competition for food.
  • Some giraffes had a bit longer necks.
    • They could find food better!
animals change over time
Animals Change Over Time
  • Long, long ago…
animals change over time2
Animals Change Over Time
  • A bit long ago…
  • Variations: differences in animals
    • Example: Some giraffes had little bit shorter necks, and some giraffes had little bit longer necks.
passing down traits
Passing Down Traits
  • Animals pass down their traits to their offspring.
    • Pass down
    • Traits
    • Offspring

 

Child (offspring)

Child (offspring)



natural selection
Natural Selection
  • Nature: the world of living things and outdoors
  • Select: to choose
  • So… What is natural selection?
    • Similar to the idea of “survival of the fittest”
    • Nature chooses who will survive and who will die
you ve got mail
You’ve Got Mail!
  • Wallace sent his ideas to Charles Darwin
  • Charles Darwin: a respected scientist in England
charles darwin
Charles Darwin
  • He was shocked to see Wallace’s finding!
  • It was too similar to what he has been working on!
  • Charles Darwin: the father of evolution
    • Evolution:
      • a theory which states that animals evolve (change) over time
galapagos finches
Galapagos Finches
  • Finch: a type of bird
  • Darwin saw many variations.
  • He came up with the theory of natural selection by studying these finches.
clever compromise
Clever Compromise
  • Wallace’s and Darwin’s works were published together. 