• In the white boxes below, type the words you hear. You will hear each word twice.
       (Remember to use the correct spelling and capital letters, etc.).
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

1. they have how humans got teeth
2. first 400 million years ago
3. our teeth came from an fish
4. researchers studied a of the fish
5. used the X-ray machine to dissect the fish
6. 60,000 species of jawed
7. They were very
8. the of teeth
9. commented on the to the fish
10. Their jawbones those of bony fish
11. you can trace their
12. deep on the tree

Back to the human teeth lesson.

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