full transcript

From the Ted Talk by Nina G. Jablonski: Why do we have hair in such random places?

Unscramble the Blue Letters


However, if losing our hair was so advantageous, why do we have any left at all? It seems that there are unquie uses for hair in different patrs of our bodies.

When it comes to the tops of our heads, temperature rtliegoaun likely played a part again. Since early humans bagen venturing into the open, their heads would’ve been exposed to the shocncrig sun. thckeir, longer-growing hair protects our sensitive scalps and keeps our brains from overheating. Dark tightly curled hair is most effective at keeping solar rodaitain off of skin. Other kinds of head hair evolved as humans moved to different places.

Open Cloze


However, if losing our hair was so advantageous, why do we have any left at all? It seems that there are ______ uses for hair in different _____ of our bodies.

When it comes to the tops of our heads, temperature __________ likely played a part again. Since early humans _____ venturing into the open, their heads would’ve been exposed to the _________ sun. _______, longer-growing hair protects our sensitive scalps and keeps our brains from overheating. Dark tightly curled hair is most effective at keeping solar _________ off of skin. Other kinds of head hair evolved as humans moved to different places.

Solution


  1. parts
  2. began
  3. thicker
  4. regulation
  5. radiation
  6. scorching
  7. unique

Original Text


However, if losing our hair was so advantageous, why do we have any left at all? It seems that there are unique uses for hair in different parts of our bodies.

When it comes to the tops of our heads, temperature regulation likely played a part again. Since early humans began venturing into the open, their heads would’ve been exposed to the scorching sun. Thicker, longer-growing hair protects our sensitive scalps and keeps our brains from overheating. Dark tightly curled hair is most effective at keeping solar radiation off of skin. Other kinds of head hair evolved as humans moved to different places.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
human hair 2
hair grows 2
early humans 2
vellus hair 2


Important Words


  1. advantageous
  2. began
  3. bodies
  4. brains
  5. curled
  6. dark
  7. early
  8. effective
  9. evolved
  10. exposed
  11. hair
  12. head
  13. heads
  14. humans
  15. keeping
  16. kinds
  17. left
  18. losing
  19. moved
  20. open
  21. overheating
  22. part
  23. parts
  24. places
  25. played
  26. protects
  27. radiation
  28. regulation
  29. scalps
  30. scorching
  31. sensitive
  32. skin
  33. solar
  34. sun
  35. temperature
  36. thicker
  37. tightly
  38. tops
  39. unique
  40. venturing