full transcript

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

Unscramble the Blue Letters

It seems that, millions of years ago in Africa, early hmniions first tnaositernid out of trees and adopted a more active lifestyle. Keeping cool became increasingly important. Eventually, they developed more sweat glands, which helped them lose heat by evaporating moisture through the skin. In fact, humans have 10 times more sawet glands than chimpanzees, for instance. But etilfcifney losing heat by sweating is hedarr to do when you’re covered in fur. scneitsits believe that early humans lost much of their coat around this time to help their sweat eoavtpare faster.

Open Cloze

It seems that, millions of years ago in Africa, early ________ first ____________ out of trees and adopted a more active lifestyle. Keeping cool became increasingly important. Eventually, they developed more sweat glands, which helped them lose heat by evaporating moisture through the skin. In fact, humans have 10 times more _____ glands than chimpanzees, for instance. But ___________ losing heat by sweating is ______ to do when you’re covered in fur. __________ believe that early humans lost much of their coat around this time to help their sweat _________ faster.

Solution

  1. harder
  2. scientists
  3. hominins
  4. transitioned
  5. efficiently
  6. sweat
  7. evaporate

Original Text

It seems that, millions of years ago in Africa, early hominins first transitioned out of trees and adopted a more active lifestyle. Keeping cool became increasingly important. Eventually, they developed more sweat glands, which helped them lose heat by evaporating moisture through the skin. In fact, humans have 10 times more sweat glands than chimpanzees, for instance. But efficiently losing heat by sweating is harder to do when you’re covered in fur. Scientists believe that early humans lost much of their coat around this time to help their sweat evaporate faster.

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. active
  2. adopted
  3. africa
  4. chimpanzees
  5. coat
  6. cool
  7. covered
  8. developed
  9. early
  10. efficiently
  11. evaporate
  12. evaporating
  13. eventually
  14. fact
  15. faster
  16. fur
  17. glands
  18. harder
  19. heat
  20. helped
  21. hominins
  22. humans
  23. important
  24. increasingly
  25. instance
  26. keeping
  27. lifestyle
  28. lose
  29. losing
  30. lost
  31. millions
  32. moisture
  33. scientists
  34. skin
  35. sweat
  36. sweating
  37. time
  38. times
  39. transitioned
  40. trees
  41. years