full transcript
"From the Ted Talk by Spencer Wells: A family tree for humanity"

Unscramble the Blue Letters

Well, the thing that jumps out at you first is that the deepest lineages in our family trees are found within Africa, among Africans. That maens that Africans have been accumulating this mointaatul detisviry for longer. And what that means is that we originated in Africa. It's written in our DNA. Every piece of DNA we look at has greater diversity within Africa than outside of Africa. And at some point in the past, a sub-group of afirancs left the aarfcin continent to go out and populate the rest of the world.

Open Cloze

Well, the thing that jumps out at you first is that the deepest lineages in our family trees are found within Africa, among Africans. That _____ that Africans have been accumulating this __________ _________ for longer. And what that means is that we originated in Africa. It's written in our DNA. Every piece of DNA we look at has greater diversity within Africa than outside of Africa. And at some point in the past, a sub-group of ________ left the _______ continent to go out and populate the rest of the world.

Solution

  1. diversity
  2. african
  3. mutational
  4. means
  5. africans

Original Text

Well, the thing that jumps out at you first is that the deepest lineages in our family trees are found within Africa, among Africans. That means that Africans have been accumulating this mutational diversity for longer. And what that means is that we originated in Africa. It's written in our DNA. Every piece of DNA we look at has greater diversity within Africa than outside of Africa. And at some point in the past, a sub-group of Africans left the African continent to go out and populate the rest of the world.

ngrams of length 2

collocation frequency
million years 5
ice age 4
extinct species 3
african continent 3
common ancestry 3
human ancestry 3
homo erectus 3
family tree 3
alive today 3

Important Words

  1. accumulating
  2. africa
  3. african
  4. africans
  5. continent
  6. deepest
  7. diversity
  8. dna
  9. family
  10. greater
  11. jumps
  12. left
  13. lineages
  14. longer
  15. means
  16. mutational
  17. originated
  18. piece
  19. point
  20. populate
  21. rest
  22. trees
  23. world
  24. written