The Darwin Awards--Project I

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Across
  1. 4. To prove natural selection, species must show ______
  2. 5. Cautionary tales of evolution
  3. 7. Darwin is said to be the father of ________
  4. 9. The Darwin Awards were named after _____ ______
  5. 10. Award winners must be capable of sound ________
  6. 13. Nominees can be chosen if they kill or ______ themselves
Down
  1. 1. To prove natural selection, variation among a species must be able to be _______
  2. 2. Survival of the _________
  3. 3. Being sterilized is being unable to ________
  4. 6. Darwin's first book on evolution was named "The Origin of ______"
  5. 8. Award winners must be the cause of their ____ demise.
  6. 11. Award winners must improve the _____ pool
  7. 12. To win a Darwin Award, the event must be ______