new years evolution resolution

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Across
  1. 2. small slippery 'sneaker male'
  2. 4. sacrifice of one aspect to gain in another
  3. 7. consistent phenotype in a variable environment
  4. 8. theory of evolution by natural selection
  5. 14. the clue itself
  6. 16. how to ensure your genes will stay in the population
  7. 18. bird courtship arena
  8. 24. an ancient altruistic amoeba
  9. 25. this over that
  10. 27. unintended subsequent effect
  11. 28. an actor's character in an evolutionary play
  12. 30. unchanging or steady
  13. 32. a nightmarish building that sucks the life out of your soul
  14. 33. possum infested island in georgia
  15. 35. a way to connect ideas that are loose in your brain
  16. 37. culmination of four years of learning at kcollege
  17. 39. Huxley coined this term in his 1942 book
  18. 40. sympatric, allopatric, parapatric, peripatric
  19. 41. to defect or to cooperate?
  20. 42. tropical dwellers known for their seed struggles
Down
  1. 1. an all pervading organism commonly found in yogurt
  2. 3. mourning attire, mating flair
  3. 5. a relatedness higher than 0
  4. 6. blood is thicker than water
  5. 9. egg and sperm
  6. 10. journal article abbreviation
  7. 11. important parental provision
  8. 12. a fruity wasp hospice, otherwise commonly associated with newton
  9. 13. byproducts of aerobic metabolism
  10. 15. these shorten as they divide
  11. 17. evolve or go extinct
  12. 19. differential reproductive success
  13. 20. Pink Floyd song title, "ticking away, the moments that make up a dull day"
  14. 21. biologist with an appearance in the epstein files
  15. 22. a way to test hypotheses, for short
  16. 23. a linked evolutionary dance
  17. 24. guppies prefer orange males because they eat orange fruit
  18. 26. often 1:1, explained by fisher
  19. 29. a 'head start' provided by your parents, briefly
  20. 31. the capacity for change
  21. 34. chemical tags on DNA that effect expression
  22. 36. providing raw material for evolution
  23. 38. was killed by kindness